John Hammer

1.4k citations

31 papers · 963 indexed · h-index 18

Impact in

Emergency Medicine top 1%
- HIV-related health complications and treatments
Virology top 5%
- HIV Research and Treatment

Papers in ⓘ

Emergency Medicine 18
- HIV-related health complications and treatments 17
Virology 5
- HIV Research and Treatment 5

Co-authors: Lois Conley (19 shared papers)John T. Brooks (19 shared papers)Edgar T. Overton (15 shared papers)Pragna Patel (20 shared papers)Keith Henry (17 shared papers)Timothy J. Bush (10 shared papers)Erna Milunka Kojic (9 shared papers)Erna M. Kojic (6 shared papers)
Journals: Sexually Transmitted Diseases (4 papers)The Journal of Infectious Diseases (4 papers)Clinical Infectious Diseases (3 papers)AIDS Research and Human Retroviruses (3 papers)Antiviral Therapy (2 papers)
Partner nations: United States

In The Last Decade

John Hammer

31 papers receiving 944 citations

Peers

Countries citing papers authored by John Hammer

Since Specialization

Citations

This map shows the geographic impact of John Hammer's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by John Hammer with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites John Hammer more than expected).

Fields of papers citing papers by John Hammer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John Hammer. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by John Hammer. The network helps show where John Hammer may publish in the future.

Co-authors

The 25 scholars most cited alongside John Hammer, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with John Hammer Line = papers co-authored together John Hammer links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 31 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	High Prevalence of Echocardiographic Abnormalities among HIV-infected Persons in the Era of Highly Active Antiretroviral Therapy Clinical Infectious Diseases ·Kristin Mondy, John S. Gottdiener, Edgar T. Overton, Keith Henry, Timothy J. Bush, Lois Conley, John Hammer, Charles C. J. Carpenter, Erna M. Kojic, Payal T. Patel, J. T. Brooks, (unknown)	2010	130
2	Human Papillomavirus Infection and Cytologic Abnormalities of the Anus and Cervix Among HIV-Infected Women in the Study to Understand the Natural History of HIV/AIDS in the Era of Effective Therapy (The SUN Study) Sexually Transmitted Diseases ·Erna Milunka Kojic, Susan Cu‐Uvin, Lois Conley, Tim Bush, Juanita Onyekwuluje, David C. Swan, Elizabeth R. Unger, Keith Henry, John Hammer, Edgar T. Overton, Teresa M. Darragh, Joel M. Palefsky, Claudia Vellozzi, Pragna Patel, John T. Brooks	2010	79
3	Ongoing Sexually Transmitted Disease Acquisition and Risk-Taking Behavior Among US HIV-Infected Patients in Primary Care: Implications for Prevention Interventions Sexually Transmitted Diseases ·Kenneth H. Mayer, Timothy J. Bush, Keith Henry, Edgar T. Overton, John Hammer, Jean L. Richardson, Kathy Wood, Lois Conley, John R. Papp, Angela M. Caliendo, Pragna Patel, John T. Brooks	2011	64
4	Factors Associated with Prevalent Abnormal Anal Cytology in a Large Cohort of HIV‐Infected Adults in the United States The Journal of Infectious Diseases ·Lois Conley, Timothy J. Bush, Teresa M. Darragh, Joel M. Palefsky, Elizabeth R. Unger, Pragna Patel, Erna M. Kojic, Susan Cu‐Uvin, Harriet Martin, Edgar T. Overton, John Hammer, Keith Henry, Claudia Vellozzi, Kathleen C. Wood, John T. Brooks	2010	63
5	Progression of Carotid Intima-Media Thickness in a Contemporary Human Immunodeficiency Virus Cohort Clinical Infectious Diseases ·Jeffrey V. Baker, W. Keith Henry, Payal T. Patel, Timothy J. Bush, Lois Conley, Wendy J. Mack, Edgar T. Overton, Matthew J. Budoff, John Hammer, Charles C. J. Carpenter, Howard N. Hodis, John T. Brooks, (unknown)	2011	62
6	Vitamin D deficiency is associated with IL-6 levels and monocyte activation in HIV-infected persons PLoS ONE ·Maura Manion, Katherine Huppler Hullsiek, Eleanor Wilson, Frank S. Rhame, Erna M. Kojic, David W. Gibson, John Hammer, Pragna Patel, John T. Brooks, Jason V. Baker, Irini Sereti, (unknown)	2017	58
7	The Study to Understand the Natural History of HIV and AIDS in the Era of Effective Therapy (SUN Study) American Journal of Epidemiology ·Claudia Vellozzi, J. T. Brooks, Timothy J. Bush, Lois Conley, Keith Henry, Charles C. J. Carpenter, Edgar T. Overton, John Hammer, Kathleen C. Wood, Scott D. Holmberg, (unknown)	2008	52
8	Direct and Indirect Effects of Heavy Alcohol Use on Clinical Outcomes in a Longitudinal Study of HIV Patients on ART AIDS and Behavior ·Christopher W. Kahler, Tao Liu, Patricia A. Cioe, Vaughn E. Bryant, Megan M. Pinkston, Erna Milunka Kojic, Nur F. Önen, Jason V. Baker, John Hammer, John T. Brooks, Pragna Patel	2016	47
9	Factors associated with non-adherence to antiretroviral therapy in the SUN study AIDS Care ·Melanie Kyser, Kate Buchacz, Timothy J. Bush, Lois Conley, John Hammer, Keith Henry, Erna Milunka Kojic, Joel Milam, Edgar T. Overton, Kathy Wood, John T. Brooks	2011	43
10	Low Bone Mineral Density and Risk of Incident Fracture in HIV-Infected Adults Antiviral Therapy ·Linda Battalora, Kate Buchacz, Carl Armon, Edgar T. Overton, John Hammer, Pragna Patel, Joan S. Chmiel, Kathy Wood, Timothy J. Bush, John R. Spear, John T. Brooks, Benjamin Young, (unknown)	2015	40
11	Short Communication: The Veterans Aging Cohort Study Index Is an Effective Tool to Assess Baseline Frailty Status in a Contemporary Cohort of HIV-Infected Persons AIDS Research and Human Retroviruses ·Gerome Escota, Pragna Patel, John T. Brooks, Tim Bush, Lois Conley, Jason V. Baker, Erna Milunka Kojic, John Hammer, Nur F. Önen, (unknown)	2014	39
12	FRAILTY AND PRE-FRAILTY IN A CONTEMPORARY COHORT OF HIV-INFECTED ADULTS The Journal of Frailty & Aging ·Nazlıcan Önen, Pragna Patel, Jason V. Baker, Lois Conley, John T. Brooks, Timothy J. Bush, Keith Henry, John Hammer, Erna M. Kojic, Edgar T. Overton	2014	37
13	High Prevalence of Low Bone Mineral Density and Substantial Bone Loss over 4 Years Among HIV-Infected Persons in the Era of Modern Antiretroviral Therapy AIDS Research and Human Retroviruses ·Gerome Escota, Kristin Mondy, Tim Bush, Lois Conley, John T. Brooks, Nur F. Önen, Pragna Patel, Erna Milunka Kojic, Keith Henry, John Hammer, Kathleen C. Wood, Kenneth Lichtenstein, Edgar T. Overton, (unknown)	2015	34
14	Prevalence and Risk Factors Associated With Herpes Simplex Virus-2 Infection in a Contemporary Cohort of HIV-Infected Persons in the United States Sexually Transmitted Diseases ·Pragna Patel, Tim Bush, Kenneth H. Mayer, Sheila Desai, Keith Henry, Edgar T. Overton, Lois Conley, John Hammer, John T. Brooks	2011	34
15	Prevalence, Incidence, and Clearance of Anal High-Risk Human Papillomavirus Infection Among HIV-Infected Men in the SUN Study The Journal of Infectious Diseases ·Pragna Patel, Tim Bush, Erna Milunka Kojic, Lois Conley, Elizabeth R. Unger, Teresa M. Darragh, Keith Henry, John Hammer, Gerome Escota, Joel M. Palefsky, John T. Brooks	2017	34
16	Elevated Soluble CD14 and Lower D-Dimer Are Associated With Cigarette Smoking and Heavy Episodic Alcohol Use in Persons Living With HIV JAIDS Journal of Acquired Immune Deficiency Syndromes ·Patricia A. Cioe, Jason V. Baker, Erna M. Kojic, Nur F. Önen, John Hammer, Pragna Patel, Christopher W. Kahler	2015	23
17	Cystatin C and Baseline Renal Function Among HIV-Infected Persons in the SUN Study AIDS Research and Human Retroviruses ·Edgar T. Overton, Pragna Patel, Kristin Mondy, Tim Bush, Lois Conley, Frank S. Rhame, Erna Milunka Kojic, John Hammer, Keith Henry, for the SUN Study Investiga John T. Brooks	2011	21
18	Sadness in the SUN: Using Computerized Screening to Analyze Correlates of Depression and Adherence in HIV-Infected Adults in the United States AIDS Patient Care and STDs ·Ellen Tedaldi, Mary van den Berg-Wolf, James T. Richardson, Pragna Patel, Marcus D. Durham, John Hammer, Keith Henry, Sara Metzler, Nur F. Önen, Lois Conley, Kathy Wood, John T. Brooks, and the SUN Study Investig Kate Buchacz	2012	18
19	Routine Brief Risk-Reduction Counseling With Biannual STD Testing Reduces STD Incidence Among HIV-Infected Men Who Have Sex With Men in Care Sexually Transmitted Diseases ·Pragna Patel, Tim Bush, Kenneth H. Mayer, Joel Milam, Jean L. Richardson, John Hammer, Keith Henry, Turner Overton, Lois Conley, Gary Marks, John T. Brooks	2012	16
20	Prevalence and Incidence of Anal and Cervical High-Risk Human Papillomavirus (HPV) Types Covered by Current HPV Vaccines Among HIV-Infected Women in the SUN Study The Journal of Infectious Diseases ·Erna Milunka Kojic, Lois Conley, Tim Bush, Susan Cu‐Uvin, Elizabeth R. Unger, Keith Henry, John Hammer, Gerome Escota, Teresa M. Darragh, Joel M. Palefsky, John T. Brooks, Pragna Patel	2018	14

About John Hammer

John Hammer is a scholar working on Emergency Medicine, Virology, Infectious Diseases, Applied Microbiology and Biotechnology and Orthopedics and Sports Medicine, having authored 31 papers that have together received 963 indexed citations. Recurring topics across this work include HIV-related health complications and treatments (17 papers), HIV/AIDS Research and Interventions (9 papers), HIV Research and Treatment (5 papers), Cervical Cancer and HPV Research (5 papers), Colorectal and Anal Carcinomas (4 papers), HIV/AIDS drug development and treatment (4 papers), Bone and Joint Diseases (4 papers) and Adolescent Sexual and Reproductive Health (3 papers). The work is most often cited by research in Emergency Medicine (417 citations), Virology (134 citations), Infectious Diseases (349 citations), Epidemiology (437 citations) and Geriatrics and Gerontology (38 citations). John Hammer has collaborated with scholars based in United States. Frequent co-authors include Lois Conley, John T. Brooks, Edgar T. Overton, Pragna Patel, Keith Henry, Timothy J. Bush, Erna Milunka Kojic, Erna M. Kojic, Tim Bush and Jason V. Baker. Their work appears in journals such as Sexually Transmitted Diseases, The Journal of Infectious Diseases, Clinical Infectious Diseases, AIDS Research and Human Retroviruses and Antiviral Therapy.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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