John Hammer

1.4k total citations
31 papers, 963 citations indexed

About

John Hammer is a scholar working on Emergency Medicine, Infectious Diseases and Epidemiology. According to data from OpenAlex, John Hammer has authored 31 papers receiving a total of 963 indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Emergency Medicine, 12 papers in Infectious Diseases and 11 papers in Epidemiology. Recurrent topics in John Hammer's work include HIV-related health complications and treatments (17 papers), HIV/AIDS Research and Interventions (9 papers) and HIV Research and Treatment (5 papers). John Hammer is often cited by papers focused on HIV-related health complications and treatments (17 papers), HIV/AIDS Research and Interventions (9 papers) and HIV Research and Treatment (5 papers). John Hammer collaborates with scholars based in United States. John Hammer's 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 and has published in prestigious journals such as PLoS ONE, Clinical Infectious Diseases and American Journal of Epidemiology.

In The Last Decade

John Hammer

31 papers receiving 944 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
John Hammer United States	18	437	417	349	215	134	31	963
Helen Kovari Switzerland	19	506 1.2×	226 0.5×	414 1.2×	140 0.7×	150 1.1×	46	1.3k
Krisann K. Oursler United States	18	559 1.3×	960 2.3×	633 1.8×	101 0.5×	267 2.0×	40	1.4k
Melissa R. Pfeiffer United States	11	240 0.5×	236 0.6×	340 1.0×	70 0.3×	116 0.9×	15	680
Nikolas Wada United States	13	313 0.7×	419 1.0×	535 1.5×	80 0.4×	369 2.8×	17	980
Valerianna Amorosa United States	18	346 0.8×	286 0.7×	375 1.1×	46 0.2×	143 1.1×	36	888
Christina Diong Canada	17	450 1.0×	137 0.3×	217 0.6×	263 1.2×	79 0.6×	65	1.0k
Carol Worrell United States	16	401 0.9×	323 0.8×	613 1.8×	177 0.8×	217 1.6×	19	974
Allison Ross Eckard United States	18	150 0.3×	618 1.5×	401 1.1×	119 0.6×	256 1.9×	47	956
Chiara Stentarelli Italy	18	358 0.8×	577 1.4×	353 1.0×	85 0.4×	196 1.5×	34	977
Isaac Delke United States	21	593 1.4×	135 0.3×	160 0.5×	108 0.5×	28 0.2×	59	1.6k

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-authorship network of co-authors of John Hammer

This figure shows the co-authorship network connecting the top 25 collaborators of John Hammer. A scholar is included among the top collaborators of John Hammer based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with John Hammer. John Hammer is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Armon, Carl, Frank J. Palella, Jun Li, et al.. (2021). Incident bone fracture and mortality in a large HIV cohort outpatient study, 2000–2017, USA. Archives of Osteoporosis. 16(1). 117–117. 8 indexed citations

Manion, Maura, Katherine Huppler Hullsiek, Eleanor Wilson, et al.. (2017). Vitamin D deficiency is associated with IL-6 levels and monocyte activation in HIV-infected persons. PLoS ONE. 12(5). e0175517–e0175517. 58 indexed citations

Patel, Pragna, Tim Bush, Erna Milunka Kojic, et al.. (2017). Prevalence, Incidence, and Clearance of Anal High-Risk Human Papillomavirus Infection Among HIV-Infected Men in the SUN Study. The Journal of Infectious Diseases. 217(6). 953–963. 34 indexed citations

Kahler, Christopher W., Tao Liu, Patricia A. Cioe, et al.. (2016). Direct and Indirect Effects of Heavy Alcohol Use on Clinical Outcomes in a Longitudinal Study of HIV Patients on ART. AIDS and Behavior. 21(7). 1825–1835. 47 indexed citations

Buchacz, Kate, Carl Armon, Edgar T. Overton, et al.. (2015). Low Bone Mineral Density and Risk of Incident Fracture in HIV-Infected Adults. Antiviral Therapy. 21(1). 45–54. 40 indexed citations

Mondy, Kristin, Tim Bush, Lois Conley, et al.. (2015). 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. 32(1). 59–67. 34 indexed citations

Conley, Lois, Timothy J. Bush, Teresa M. Darragh, et al.. (2015). Incidence and Predictors of Abnormal Anal Cytology Findings Among HIV-Infected Adults Receiving Contemporary Antiretroviral Therapy. The Journal of Infectious Diseases. 213(3). 351–360. 9 indexed citations

Cioe, Patricia A., Jason V. Baker, Erna M. Kojic, et al.. (2015). 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. 70(4). 400–405. 23 indexed citations

Buchacz, Kate, Carl Armon, Edgar T. Overton, et al.. (2014). New Fracture Risk And Frax 10-Year Probability Of Fracture In Hiv-Infected Adults. Value in Health. 17(3). A268–A268. 3 indexed citations

10.

Patel, Pragna, Jason V. Baker, Lois Conley, et al.. (2014). FRAILTY AND PRE-FRAILTY IN A CONTEMPORARY COHORT OF HIV-INFECTED ADULTS. The Journal of Frailty & Aging. 3(3). 1–8. 37 indexed citations

11.

Patel, Pragna, John T. Brooks, Tim Bush, et al.. (2014). 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. 31(3). 313–317. 39 indexed citations

12.

Patel, Pragna, Tim Bush, Kenneth H. Mayer, et al.. (2012). 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. 39(6). 470–474. 16 indexed citations

13.

Tedaldi, Ellen, Mary van den Berg-Wolf, James T. Richardson, et al.. (2012). 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. 26(12). 718–729. 18 indexed citations

14.

Patel, Pragna, Tim Bush, Kenneth H. Mayer, et al.. (2011). 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. 39(2). 154–160. 34 indexed citations

15.

Henry, W. Keith, Payal T. Patel, Timothy J. Bush, et al.. (2011). Progression of Carotid Intima-Media Thickness in a Contemporary Human Immunodeficiency Virus Cohort. Clinical Infectious Diseases. 53(8). 826–835. 62 indexed citations

16.

Overton, Edgar T., Pragna Patel, Kristin Mondy, et al.. (2011). Cystatin C and Baseline Renal Function Among HIV-Infected Persons in the SUN Study. AIDS Research and Human Retroviruses. 28(2). 148–155. 21 indexed citations

17.

Kojic, Erna Milunka, Susan Cu‐Uvin, Lois Conley, et al.. (2010). 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. 38(4). 253–259. 79 indexed citations

18.

Mondy, Kristin, John S. Gottdiener, Edgar T. Overton, et al.. (2010). High Prevalence of Echocardiographic Abnormalities among HIV-infected Persons in the Era of Highly Active Antiretroviral Therapy. Clinical Infectious Diseases. 52(3). 378–386. 130 indexed citations

19.

Conley, Lois, Timothy J. Bush, Teresa M. Darragh, et al.. (2010). Factors Associated with Prevalent Abnormal Anal Cytology in a Large Cohort of HIV‐Infected Adults in the United States. The Journal of Infectious Diseases. 202(10). 1567–1576. 63 indexed citations

20.

Vellozzi, Claudia, J. T. Brooks, Timothy J. Bush, et al.. (2008). The Study to Understand the Natural History of HIV and AIDS in the Era of Effective Therapy (SUN Study). American Journal of Epidemiology. 169(5). 642–652. 52 indexed citations

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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