Research

The North Jersey Community Research Initiative (NJCRI), founded in 1988, has been a trailblazer in clinical and behavioral research in Newark and across northern New Jersey. From its early days, NJCRI championed access to clinical trials for individuals living with HIV, offering hope and innovative treatment options during the most challenging years of the epidemic.

Over the decades, NJCRI has grown into a powerhouse of medical and behavioral health research, producing groundbreaking publications, sharing insights on global stages, and delivering comprehensive care that spans prevention programs, substance use treatment, and more in the international and national settings. The organization is deeply rooted in the community, driving research that matters—whether it’s advancing prevention, championing hepatitis C elimination, or expanding access to healthcare.

Today, NJCRI is more than a research organization—it’s a beacon of hope, empowerment, and innovation. Through compassionate care, bold advocacy, and cutting-edge health and social services, NJCRI continues to transform lives, uplift communities, and make a lasting impact locally, nationally, and around the globe.

What is Research?

Research is a process:

Systematic inquiry
Collection of data
Documentation of critical information
Analysis and interpretation of that data/information.
Dissemination of your outcomes and findings

Clinical Trials:

Medical Trials
Behavioral Trials
Explores new testing methods
Tests new medical treatment trials
Evaluate their effects on human health outcomes and behavioral outcomes

Community Based Participatory Research (CBPR)

Collaborative research approach where community members, researchers, service providers, consumers, government representatives, funders, and other stakeholders join together
Evaluate the research process with the aim to improve conditions in their communities.

Behavioral Surveillance:

Public health Surveillance/Mapping
Systematic and ongoing collection of data about risk and health-related behaviors
Correlating trends in behaviors with changes in disease over time.

Evaluation and Data Analysis:

Quantitative data analysis:

Using Statistical methods to describe, summarize, and compare data.
Plan the analysis before the collection of data
ensure that your data will be meaningful and useful.
Determine your focus. Consider the purpose of your evaluation.

Evaluation and Data Analysis:

Qualitative data analysis

Identification, examination, and interpretation of patterns and themes in textual data.
Determines how patterns and themes help answer the research questions.
Findings are likely to change and adapt as the study evolves and the data emerges.

2023/2024 Publications and Abstracts

Corey Rosmarin- DeStefano, Jihad Slim, MD, Barbara Tempalski, PhD, Diana Finkel, DO, Kevin Leyden, RN, Emily Levaggi CPT, Juan Torres, CMA, Sheena Duprey, LPN North Jersey Community Research Initiative (NJCRI), Newark, NJ. Understanding Hepatitis C Reinfection and Factors Associated with HCV Infection in New Jersey, USA. Global Hepatitis Summit April 25-28, 2023, Paris France.
Joachim D. Sackey, Mina Ghbrial, Corey Rosmarin-DeStefano, Mishal Khan, Syd Rosen, Juan Torres, Diana Finkel. Food Insecurity, Community Belongingness and Social Support among Adult Transgender Individuals in Newark, New Jersey. American Society for Nutrition, July 22-25, 2023, Boston, MA

Corey Rosmarin- DeStefano, Jihad Slim, MD, Barbara Tempalski, PhD, Kevin Leyden, RN, Emily Levaggi CPT, Juan Torres, CMA, Sheena Duprey, LPN, Evelyn Chavez, Armanious, D, Armanious A, Olsson, T, MPH. North Jersey Community Research Initiative (NJCRI), Newark, NJ. Impact of an Innovative Community Based Contracted Pharmacy on HCV Elimination in New Jersey, ID Week, October 11-14, 2023 Boston, MA.

Corey Rosmarin- DeStefano, Jihad Slim, MD, Barbara Tempalski, PhD, Diana Finkel, DO, Kevin Leyden, RN, Emily Levaggi CPT, Juan Torres, CMA, Sheena Duprey, LPN North Jersey Community Research Initiative (NJCRI), Newark, NJ. Understanding Hepatitis C Reinfection and Factors Associated with HCV Infection in New Jersey, USA. INSHU Conference October 16-20, 2023, Geneva Switzerland.

Corey Rosmarin- DeStefano, Jihad Slim, MD, Barbara Tempalski, PhD, Kevin Leyden, RN, Emily Levaggi CPT, Juan Torres, CMA, Sheena Duprey, LPN, Evelyn Chavez, Armanious, D, Armanious A, Olsson, T, MPH. North Jersey Community Research Initiative (NJCRI), Newark, NJ. Impact of an Innovative Community Based Contracted Pharmacy on HCV Elimination in New Jersey, INSHU Conference October 16-20, 2023, Geneva Switzerland.

Corey Rosmarin- DeStefano, Jihad Slim, MD, Barbara Tempalski, PhD, Kevin Leyden, RN, Emily Levaggi CPT, Juan Torres, CMA, Sheena Duprey, LPN, Evelyn Chavez, Armanious, D, Armanious A, Olsson, T, MPH. North Jersey Community Research Initiative (NJCRI), Newark, NJ. Impact of an Innovative Community Based Contracted Pharmacy on HCV Elimination in New Jersey, American Public Health Association Conference, November 12-15, 2023 Atlanta, GA.

Corey Rosmarin- DeStefano, Jihad Slim, MD, Barbara Tempalski, PhD, Kevin Leyden, RN, Emily Levaggi CPT, Juan Torres CMA, Sheena Duprey, LPN, Evelyn Chavez North Jersey Community Research Initiative (NJCRI), Newark, Pushing back the Fear: An Innovative Mobile Community Based Approach to a Statewide HCV Elimination Initiative in Vulnerable Populations, International Viral Hepatitis Elimination Project (IVHEM 2023) Amsterdam, The Netherlands, December 1-3, 2023.

Corey Rosmarin- DeStefano, Jihad Slim, MD, Barbara Tempalski, PhD, Kevin Leyden, RN, Emily Levaggi CPT, Juan Torres CMA, Sheena Duprey, LPN, Evelyn Chavez North Jersey Community Research Initiative (NJCRI), Newark, NJ Real World Experience with Glecaprevir/Pibrentasvir (G/P) and Sofosbuvir/Velpatasvir (S/V) in New Jersey, USA World Hepatitis Summit Lisbon, Portugal April 9-1, 2024

Christian Mendez Baez, MD, Corey Rosmarin- DeStefano, Kevin Leyden, RN, Diana Finkel, DO, Sonia Vera. Increasing Access to Hepatitis C Care in Latinx Who Inject Drugs. National Latinx Conference on HIV, Hepatitis and STIs San Jose, TX May 2-4, 2024.

Wang P, Wogayehu A, Bolden B, Ibrahim AR, Raymond HF. Assessing Consistency of Respondent-driven Sampling Estimators by Using Repeated Surveys among People Who Inject Drugs (PWID) in New Jersey. AIDS Behav. 2024. Epub.

Corey Rosmarin DeStefano, Ronald Poblete, MD, Danilo Gamino, Clinical Performance Evaluation of the Polymerase Chain Reaction (PCR)-Based cobas CT/NG/MG Test for Use on the cobas liat System in a Clinical Laboratory Setting and Point-of-Care (POC) Location ADLM Conference July 28 - August 4, 2024, Chicago, Illinois

Corey Rosmarin- DeStefano, Christian Mendez-Baez, Diana Finkel, DO, Marc Picard, MD, Tess Olsson, MPH, Sonia Vera, Angelica Andujar, LPN, Flavia Escalante, Keven Tirado, Karina Landaverde, Maurcio Caro, Gabriel Aquino North Jersey Community Research Initiative NJCRI, Rutgers University, Newark, NJ. Community Based Food Pantry Serves as an Entry Point for HIV Care and Treatment for Migrants in Newark, NJ. National Ryan White Conference on HIV Care and Treatment, Washington, DC August 20-23, 2024.
Slim J, Rosmarin- DeStefano C, Tempalski B, Duprey, S, Leyden, K, Levaggi, E, Torres, J, North Jersey Community Research Initiative (NJCRI) The availability of a portable "fibroscan" in a mobile unit for hepatitis C treatment improves quality of care. International Conference on Health and Hepatitis in Substance Users, Athens Greece, October 8-11, 2024.
Jihad Slim, Maria Akiki, Barbara Tempalski, Corey Rosmarin-DeStefano, Kevin Leyden, Juan Torres, Sheena Duprey, Emily Levaggi, North Jersey Community Research Initiative (NJCRI). Prevalence of Hepatitis B and Hepatitis A in people with chronic active Hepatitis C in NJ. ID Week, Los Angeles, CA October 16-19, 2024.

Corey Rosmarin- DeStefano, Christian Mendez-Baez, Diana Finkel, DO, Marc Picard, MD, Sonia Vera, Angelica Andujar, LPN, Flavia Escalante, Keven Tirado, Karina Landaverde, Maurcio Caro, Gabriel Aquino North Jersey Community Research Initiative NJCRI, Rutgers University, Newark, NJ. Food Pantry in a trusted community Setting serves as an Entry Point for HIV Prevention and Treatment in the Migrant population in Newark, NJ. American Public Health Association (APHA) October 27-30, 2024 Minneapolis, MN.
2023/2024 Publications and Abstracts
Corey Rosmarin- DeStefano, Jihad Slim, MD, Barbara Tempalski, PhD, Kevin Leyden, RN, Emily Levaggi CPT, Juan Torres, CMA, Sheena Duprey, LPN, Evelyn Chavez, Armanious, D, Armanious A, Olsson, T, MPH. North Jersey Community Research Initiative (NJCRI), Newark, NJ. Impact of an Innovative Community Based Contracted Pharmacy on HCV Elimination in New Jersey, ID Week, October 11-14, 2023 Boston, MA.
Corey Rosmarin- DeStefano, Jihad Slim, MD, Barbara Tempalski, PhD, Diana Finkel, DO, Kevin Leyden, RN, Emily Levaggi CPT, Juan Torres, CMA, Sheena Duprey, LPN North Jersey Community Research Initiative (NJCRI), Newark, NJ. Understanding Hepatitis C Reinfection and Factors Associated with HCV Infection in New Jersey, USA. INSHU Conference October 16-20, 2023, Geneva Switzerland.
Corey Rosmarin- DeStefano, Jihad Slim, MD, Barbara Tempalski, PhD, Kevin Leyden, RN, Emily Levaggi CPT, Juan Torres, CMA, Sheena Duprey, LPN, Evelyn Chavez, Armanious, D, Armanious A, Olsson, T, MPH. North Jersey Community Research Initiative (NJCRI), Newark, NJ. Impact of an Innovative Community Based Contracted Pharmacy on HCV Elimination in New Jersey, INSHU Conference October 16-20, 2023, Geneva Switzerland.
Corey Rosmarin- DeStefano, Jihad Slim, MD, Barbara Tempalski, PhD, Kevin Leyden, RN, Emily Levaggi CPT, Juan Torres, CMA, Sheena Duprey, LPN, Evelyn Chavez, Armanious, D, Armanious A, Olsson, T, MPH. North Jersey Community Research Initiative (NJCRI), Newark, NJ. Impact of an Innovative Community Based Contracted Pharmacy on HCV Elimination in New Jersey, American Public Health Association Conference, November 12-15, 2023 Atlanta, GA.
Corey Rosmarin- DeStefano, Jihad Slim, MD, Barbara Tempalski, PhD, Kevin Leyden, RN, Emily Levaggi CPT, Juan Torres CMA, Sheena Duprey, LPN, Evelyn Chavez North Jersey Community Research Initiative (NJCRI), Newark, Pushing back the Fear: An Innovative Mobile Community Based Approach to a Statewide HCV Elimination Initiative in Vulnerable Populations, International Viral Hepatitis Elimination Project (IVHEM 2023) Amsterdam, The Netherlands, December 1-3, 2023.
Corey Rosmarin- DeStefano, Jihad Slim, MD, Barbara Tempalski, PhD, Kevin Leyden, RN, Emily Levaggi CPT, Juan Torres CMA, Sheena Duprey, LPN, Evelyn Chavez North Jersey Community Research Initiative (NJCRI), Newark, NJ Real World Experience with Glecaprevir/Pibrentasvir (G/P) and Sofosbuvir/Velpatasvir (S/V) in New Jersey, USA World Hepatitis Summit Lisbon, Portugal April 9-1, 2024
Christian Mendez Baez, MD, Corey Rosmarin- DeStefano, Kevin Leyden, RN, Diana Finkel, DO, Sonia Vera. Increasing Access to Hepatitis C Care in Latinx Who Inject Drugs. National Latinx Conference on HIV, Hepatitis and STIs San Jose, TX May 2-4, 2024.
Wang P, Wogayehu A, Bolden B, Ibrahim AR, Raymond HF. Assessing Consistency of Respondent-driven Sampling Estimators by Using Repeated Surveys among People Who Inject Drugs (PWID) in New Jersey. AIDS Behav. 2024. Epub.
Corey Rosmarin DeStefano, Ronald Poblete, MD, Danilo Gamino, Clinical Performance Evaluation of the Polymerase Chain Reaction (PCR)-Based cobas CT/NG/MG Test for Use on the cobas liat System in a Clinical Laboratory Setting and Point-of-Care (POC) Location ADLM Conference July 28 - August 4, 2024, Chicago, Illinois
Corey Rosmarin- DeStefano, Christian Mendez-Baez, Diana Finkel, DO, Marc Picard, MD, Tess Olsson, MPH, Sonia Vera, Angelica Andujar, LPN, Flavia Escalante, Keven Tirado, Karina Landaverde, Maurcio Caro, Gabriel Aquino North Jersey Community Research Initiative NJCRI, Rutgers University, Newark, NJ. Community Based Food Pantry Serves as an Entry Point for HIV Care and Treatment for Migrants in Newark, NJ. National Ryan White Conference on HIV Care and Treatment, Washington, DC August 20-23, 2024.
Corey Rosmarin DeStefano, Ronald Poblete, MD, Danilo Gamino, Clinical Performance Evaluation of the Polymerase Chain Reaction (PCR)-Based cobas CT/NG/MG Test for Use on the cobas liat System in a Clinical Laboratory Setting and Point-of-Care (POC) Location ADLM Conference July 28 - August 4, 2024, Chicago, Illinois
Slim J, Rosmarin- DeStefano C, Tempalski B, Duprey, S, Leyden, K, Levaggi, E, Torres, J, North Jersey Community Research Initiative (NJCRI) The availability of a portable "fibroscan" in a mobile unit for hepatitis C treatment improves quality of care. International Conference on Health and Hepatitis in Substance Users, Athens Greece, October 8-11, 2024.
Jihad Slim, Maria Akiki, Barbara Tempalski, Corey Rosmarin-DeStefano, Kevin Leyden, Juan Torres, Sheena Duprey, Emily Levaggi, North Jersey Community Research Initiative (NJCRI). Prevalence of Hepatitis B and Hepatitis A in people with chronic active Hepatitis C in NJ. ID Week, Los Angeles, CA October 16-19, 2024.
Corey Rosmarin- DeStefano, Christian Mendez-Baez, Diana Finkel, DO, Marc Picard, MD, Sonia Vera, Angelica Andujar, LPN, Flavia Escalante, Keven Tirado, Karina Landaverde, Maurcio Caro, Gabriel Aquino North Jersey Community Research Initiative NJCRI, Rutgers University, Newark, NJ. Food Pantry in a trusted community Setting serves as an Entry Point for HIV Prevention and Treatment in the Migrant population in Newark, NJ. American Public Health Association (APHA) October 27-30, 2024 Minneapolis, MN.
Publications 1988-2010
Bishburg, E, Eng RH, Slim, J, Perez G, Johnson, E. Brain lesions in patients with acquired immunodeficiency syndrome. Arch Int Med 1989; 149: 941-43.
Bogden J.D, Baker H, Frank O, Perez G, et.al. Micronutrient status and human immunodeficiency virus (HIV) infection. Annals New York Academy of Sciences 1990; 597:189-195.
Jacobson M, Besch L, Child C, Hafner R, Matts M, Muth K, Wentworth D, Neaton JD, Abrams DA, Rimland J, Perez G, et al. Prophylaxis and pyrimethamine for Toxaplasmic encephalitis in patients with advanced HIV disease: results of a randomized trial. JID 1996;169: 384-394.

Denny T, Skurnick JH, Garcia A, Perez G, et al. Lymphocyte immunoregulatory cells present in semen from human immunodeficiency (HIV)-infected individuals: a report from the HIV Heterosexual Transmission Study. Cytometry 1996; 587: 189-95.
Gordin F, Matts J, Miller C, Brown LS, Hafner R, John S, Klein M, Vaughn A, Besch CL; Perez G; Szabo S, El-Sadr W. A Controlled Trial of Isoniazid in Persons with Anergy and Human Immunodeficiency Virus Infection Who Are at High Risk for Tuberculosis. N. Engl J. Med 1997, 337 (5): 315-20.
Shepp DH, Ramirez-Ronda C, Dall L, Pollard RB, Murphy RL, Kessler H, Sherer R, Mertz G; Perez G, et.al. A comparative trial of Zidovudine administered every four versus every twelve hours for the treatment of advanced HIV disease. J. Acquir Immun Defic Syndr 1997; 15 (4): 283-288.
Bardeguez AD, Skurnick JH, Perez G, Colon JM, Kloser P, Denny T. Lymphocute shedding from genital tract of HIV-Infected women: immunophenotypic and clinical correlates. Am. J. Obstet Gynecol 1997; 176:158-65.
Skurnick JH, Kennedy CA, Perez G, et al. Behavioral and demographic risk factors for transmission of human immunodeficiency virus type 1 in heterosexual couples: a report from the Heterosexual HIV Transmission Study. JID 1998; 26: 855-64.
Denny T, Skurnick JH, Palumbo P, Perez G, et al. CD3+CD8+ cell levels as predictors of transmission in human immunodeficiency virus-infected couples: a report from the Heterosexual HIV Transmission Study. Int J Infect Dis 1998; 2: 186-92..
Perez G, Skurnick JH, Denny T, et al. Herpes simplex II and Mycoplasma genitalium as risk factors for heterosexual HIV transmission: a report from the Heterosexual HIV Transmission Study. Int J Infect Dis 1998; 3: 5-11.
Bogden JD, Kemp FW, Ham S, Li W, Bruening K.; Denny T, Oleske JM, Lloyd J, Baker H, Perez G. et.al. Status of selected nutrients and progression of human immunodeficiency virus type 1 infection. Am J Clin Nutr 2000; 72:809-815.
Hellinger JA, Duane MK, Smith JJ, Fleishman AN, Torres RA, Schrader S, Perez G, et al. A randomized study of the safety and antiretroviral activity of hydroxyurea combined with didanosine in persons infected with human immunodeficiency virus type 1. JID 2000; 181: 540-7.
Abu-ata O, Slim J, Perez G, Smith SM. HIV therapeutics: Past, present and future. Adv in Pharmacol 2000; 49:1-40.
Tedaldi E, Huppler-Hullisiek K, Malvestutto C, Arduino, R, Fisher E, Gaglio P, Jenny-Avital E, McGowan J, Perez G. Prevalence and characteristics of HCV coinfection in an HIV clinical trials group. Clin Infect Dis 2003; 36:1313-17.
Perez G, MacArthur R, Walmsley S, et.al. A multinational randomized clinical trial comparing nelfinavir and ritonavir in 775 patients (CPCRA 042/CTN 102). HIV Clinical Trial 2004; 5(1):7-18.
Smith SM, Donio MJ, Singh M, Fallon JP, Jitendrath L, Chrebeti N, Slim J, Perez G. Prevalence of GBV virus type C in urban Americans infected with human immunodeficiency type 1. Retrovirology 2005; 2: 38-41.
Loutfy MR, Walmsley SM, Mullin CM, Perez G, et al. CD4+ cell count increase predicts clinical benefits in patients with advanced HIV disease and persistent viremia after 1 year of combination antiretroviral therapy. JID 2005; 192: 1407-11.
MacArthur RD, Perez G, Walmsley S et al. Comparison of prognostic importance of latest CD4 cell count and HIV RNA levels in patients with advanced HIV infection on highly active antiretroviral therapy. HIV Clin Trials 2005; 127-35
D:A:D Study Group. Use of nucleotide reverse transcriptase inhibitors and risk of myocardial infarction in HIV-infected patients in the D:A:D study: a multi-cohort collaboration. Lancet 2008; 371: 1417-26.
Data Collection on Adverse Events of Anti-HIV Drugs Study Group. Changes over time in risk factors for cardiovascular disease and use of lipid-lowering drugs in HIV-infected individuals and impact on myocardial infarction. Clin Infect Dis 2008; 46: 1101-10.
Strategies for Management of Antiretroviral Therapy (SMART) Study Group. Major clinical outcomes in antiretroviral therapy (ART)-naïve participants and in those not receiving ART at baseline in the SMART study. JID 2008; 197: 1133-44
Strategies for Management of Antiretroviral Therapy (SMART) Study Group. Inferior clinical outcomes of the CD4+ cell count-guided antiretroviral treatment interruption strategy in the SMART study: role of CD4+ cell counts and HIV RNA levels during follow-up. JID 2008; 197: 1145-55.
INSIGHT Cause of Death Writing Group. Determination of the cause of death in three multicenter international HIV clinical trials. HIV Clin Trials 2008; 9: 177-85.
BENCHMRK Study Team. Raltegravir with optimized background therapy for resistant HIV-1 infection. N Engl J Med 2008; 359: 334-54.
BENCHMRK Study Team. Subgroup and resistance analyses of raltegravir for resistant HIV-1 infection. N Engl J Med 2008; 359: 355-65.
SMART Study Group. Risk for opportunistic disease and death after reinitiating antiretroviral therapy with HIV previously receiving episodic therapy: a randomized trial. Ann Intern Med 2008; 149: 289-99.
Data Collection on Adverse Events of Anti-HIV Drugs (D:A:D) Study Group. HIV-induced immunodeficiency and mortality for AIDS-defining and no-AIDS-defining malignancies. AIDS 2008; 22: 2143-53.
SMART Study Group. Viral resuppression and detection of drug resistance following interruption of a suppressing non-nucleoside reverse transcriptase based regimen. AIDS 2008; 22: 2279-89.
INSIGHT SMART Study Group. Interruption of antiretroviral therapy is associated with increased plasma cystatin C. AIDS 2009; 23: 71-82.
Stepanyuk O, Chang TS, Dever LL, Paez SL, Smith SM, Perez G, Eng RH. Impact of adding maraviroc to antiretroviral regimens in patients with full viral suppression but impaired CD4 recovery. AIDS 2009; 23: 1911-13.
INSIGHT Strategies for Management of Antiretroviral Therapy (SMART) Study Group. Activation and coagulation biomarkers are independent predictors of the development of opportunistic disease in patients with HIV infection. JID 2009; 200: 973-83.
INSIGHT-ESPRIT Study Group; SILCAAT Scientific Committee. Interleukin-2 therapy in patients with HIV infection. N Engl J Med 2009; 361: 1548-59.
D:A:D Study Group. High prevalence of the metabolic syndrome in HIV-infected patients: impact of different definitions of the metabolic syndrome. AIDS 2010; 24: 427-35.
SWITCHMRK 1 and 2 investigators. Switch to a raltegravir-based regimen versus continuation of a lopinavir-ritonavir-based regimen in stable HIV-infected patients with suppressed viremia (SWITCHMRK 1 and 2): two multicentre double-blind, randomized controlled trials. Lancet 2010; 375: 396-407.
BENCHMRK Study Teams. Long term efficacy and safety of raltegravir combined with optimized background therapy in treatment-experienced patients with drug-resistant HIV infection: week 96 results of the BENCHMRK 1 and 2 phase III trials. Clin Infect Dis 2010; 50: 605-12.
INSIGHT STALWART Study Group. Effects of intermittent IL-2 alone or with peri-cycle antiretroviral therapy in early HIV infection: the STALWART study. PLoS One 2010; 5(2): e9334.

ABSTRACTS 1988- 2008

DeFronzo, S.; Johnson, E.; Perez, G.; Slim, J. Ceftazidime Monotherapy for Pseudomonas meningitis. Abstract 3rd pan American Congress of Infectious Diseases, 1996.
Perez, G.; Slim, J.; DeFronzo, S.; et.al. Etiology of Community Acquired Hospitalized Pneumonias in an Urban Teaching Hospital. Abstract 3rd Pan American Congress of Infectious Diseases, 1986.
Slim, J.; Johnson, E.; Perez, G. Comparison of Methicillin-Resistant Staphylococcus Aureus Bacteremias with Respect to Prior Antibiotic Administration. Abstract 3rd Pan American Congress of Infectious Diseases, 1986.
Slim, J.; Perez, G.; Shafi, A.; Johnson, E. Short Course Therapy for Pneumocystis Carinii. 29th I.C.A.A.C. Houston, TX. June, 1989
Slim, J.; Perez, G.; Shafi, A.; Johnson, E. Final Diagnosis in Patients with negative Bronchoalveor Lavage for Pneumocystis 5th International Conference on AIDS. Montreal, Canada. June, 1989.
Slim, J.; Perez, G.; Heldge, D.; Perez, E. Hospital Cost DRG Reimbursement for HIV Admissions 5th International Conference on AIDS. Montreal, Canada. June 1989.
Slim, J.; Perez, G.; Forrester, C., Ronnesen, G.; Johnson, E. Zidovudine Use in Intravenous Drug Users. 5th International Conference on AIDS. Montreal, Canada. June, 1989.
Slim, J.; Gatio, A.; Perez, E.; Calandriello, A.; Johnson, E.; Perez, G. Universal Precautions Warranted for Unidentified HIV-Infected Patients. 89th ASM Annual Meeting, New Orleans, LA May 1989.
Slim, J.; Gatio, A.; Perez, E.; Calandriello, A.; Johnson, E.; Incidence of HIV Infection in Unidentified Hospitalized Patients. 89th SM Annual Meeting. New Orleans, LA. May, 1989.
Totino, E.; Perez, G. Susceptibility of Enterobacteriacae in Clinical Isolates to Broad Spectrum Antimicrobial Agents. 91st ASM Annual Meeting. Dallas, TX.
Perez, G.; Marton, R.; Lam, Sihoi, et.al. A randomized Prospective comparison of Twice Daily and Twice Weekly Trimethorprin-Sulfamethoxasole as Pneumocystis Prophylaxis. VII International AIDS Conference. Florence, Italy, June 1991.
Perez, G.; DeSimone, ED.; Soroko, T.; et.al. Correlation of Hepatitis B Serology in Discordant Couples at Risk for HIV Transmission. VII International AIDS Conference, Florence, Italy, June 1991.
Denny, T.; Crenshaw, K.; Monel, R.; Scolpino, A.; Perez, G.; et.al. Laboratory Evaluation of HIV Discordant Heterosexual Couples: A Report from the Heterosexual Transmission Study. VIII International AIDS Conference. Amsterdam, the Netherlands. July, 1992.
Perez, G.; Nahmias, A.; Denny, T.; et.al. Correlation of Herpes II Serology in Discordant Couples at Risk for HIV Transmission; A Report from HATS. IX International AIDS Conference. Berlin, Germany. June 1993.
Boghossian, J.; Perez, G.; Denny, T.; et.al. Comparison of Syphilis Serology in Discordant and Concordant Couples with HIV Disease; A Report from HATS. IX International AIDS Conference. Berlin, Germany. June 1993.
Poblete, R.; Perez, G.; DeSimone, ED.; et.al. Comparison of Hepatitis B Serology in Couples with HIV. IX International AIDS Conference. Berlin, Germany. June 1993.
Eng RHK, Perez G, Paez SL, Chang TS, Smith SM. Impact of adding maraviroc to HIV patients with undetectable plasma RNA but are non-CD4 progressors. 48th Annual ICAAC/IDSA 46th meeting. October 2008; Washington DC.