Ryan Cook

2.5k total citations
101 papers, 1.4k citations indexed

About

Ryan Cook is a scholar working on Infectious Diseases, Public Health, Environmental and Occupational Health and Epidemiology. According to data from OpenAlex, Ryan Cook has authored 101 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 42 papers in Infectious Diseases, 38 papers in Public Health, Environmental and Occupational Health and 36 papers in Epidemiology. Recurrent topics in Ryan Cook's work include HIV/AIDS Research and Interventions (42 papers), Adolescent Sexual and Reproductive Health (27 papers) and HIV, Drug Use, Sexual Risk (24 papers). Ryan Cook is often cited by papers focused on HIV/AIDS Research and Interventions (42 papers), Adolescent Sexual and Reproductive Health (27 papers) and HIV, Drug Use, Sexual Risk (24 papers). Ryan Cook collaborates with scholars based in United States, Zambia and South Africa. Ryan Cook's co-authors include Stephen M. Weiss, Deborah L. Jones, Deborah L. Jones, Karl Peltzer, Ndashi Chitalu, P. Todd Korthuis, Steven Shoptaw, Violeta J. Rodriguez, Drenna Waldrop‐Valverde and Viviene A. Temple and has published in prestigious journals such as SHILAP Revista de lepidopterología, The Journal of Immunology and PLoS ONE.

In The Last Decade

Ryan Cook

94 papers receiving 1.4k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Ryan Cook United States	23	579	524	414	379	245	101	1.4k
Naoko Ishikawa Japan	22	592 1.0×	319 0.6×	538 1.3×	248 0.7×	198 0.8×	48	1.5k
Elly Katabira Uganda	26	809 1.4×	331 0.6×	410 1.0×	329 0.9×	383 1.6×	69	1.8k
Victoria Sharp United States	26	794 1.4×	734 1.4×	612 1.5×	240 0.6×	73 0.3×	64	1.8k
Katherine Tassiopoulos United States	26	1.2k 2.1×	528 1.0×	633 1.5×	273 0.7×	177 0.7×	79	2.2k
Wei‐Ti Chen United States	23	478 0.8×	351 0.7×	339 0.8×	138 0.4×	90 0.4×	125	1.6k
Lindsey Richardson Canada	22	310 0.5×	465 0.9×	780 1.9×	576 1.5×	152 0.6×	73	1.7k
Nina Shah United States	24	576 1.0×	407 0.8×	939 2.3×	687 1.8×	214 0.9×	44	2.0k
Patrick Peretti‐Watel France	22	414 0.7×	405 0.8×	543 1.3×	335 0.9×	140 0.6×	78	1.7k
Kayla N. Anderson United States	16	629 1.1×	199 0.4×	180 0.4×	541 1.4×	414 1.7×	45	2.2k
Judith C. Shlay United States	21	503 0.9×	325 0.6×	558 1.3×	171 0.5×	98 0.4×	62	1.6k

Countries citing papers authored by Ryan Cook

Since Specialization

Citations

This map shows the geographic impact of Ryan Cook'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 Ryan Cook with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ryan Cook more than expected).

Fields of papers citing papers by Ryan Cook

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ryan Cook. 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 Ryan Cook. The network helps show where Ryan Cook may publish in the future.

Co-authorship network of co-authors of Ryan Cook

This figure shows the co-authorship network connecting the top 25 collaborators of Ryan Cook. A scholar is included among the top collaborators of Ryan Cook 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 Ryan Cook. Ryan Cook 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

Young, April M., Miriam Elman, Ryan Cook, et al.. (2025). Can a participant‐referred ‘study buddy’ increase retention of rural people who use drugs in research? A multi‐site, randomized trial. Addiction. 121(4). 894–907.

Lancaster, Kathryn E., Caroline Koudelka, Miriam Elman, et al.. (2025). Preferences for clinical trial participation among people who use drugs in rural Oregon and Appalachian Ohio. Drug and Alcohol Dependence. 276. 112894–112894.

Cook, Ryan, Gillian Leichtling, Hunter Spencer, et al.. (2024). Peer-Assisted Telemedicine for Hepatitis C in People Who Use Drugs: A Randomized Controlled Trial. Clinical Infectious Diseases. 80(3). 501–508. 8 indexed citations

Korthuis, P. Todd, et al.. (2023). Associations between stimulant use and return to illicit opioid use following initiation onto medication for opioid use disorder. Addiction. 119(1). 149–157. 5 indexed citations

Levander, Ximena A., Thomas Carmody, Ryan Cook, et al.. (2023). A gender‐based secondary analysis of the ADAPT‐2 combination naltrexone and bupropion treatment for methamphetamine use disorder trial. Addiction. 118(7). 1320–1328. 1 indexed citations

Cook, Ryan, Onyebuchi A. Arah, Keith Humphreys, et al.. (2023). Estimating the impact of stimulant use on initiation of buprenorphine and extended-release naltrexone in two clinical trials and real-world populations. Addiction Science & Clinical Practice. 18(1). 11–11. 10 indexed citations

Cook, Ryan, et al.. (2023). Treatment Initiation, Substance Use Trajectories, and the Social Determinants of Health in Persons Living With HIV Seeking Medication for Opioid Use Disorder. Substance Abuse. 44(4). 301–312.

Fonseca, Daniel, et al.. (2023). Assessment of the Neurological Activation in Law Enforcement under High Threat Situations: A Fuzzy Logic Approach. World Journal of Neuroscience. 13(1). 67–89. 1 indexed citations

Ahamed, Sonya, Chelsea Schelly, Kristin Floress, et al.. (2023). ‘Being able to work has kept our life fairly constant:’ reconciling social practice models to assess the impact of (infra)structural inequities on household wellbeing during the COVID-19 pandemic. SHILAP Revista de lepidopterología. 3(1). 15012–15012. 1 indexed citations

10.

Young, April M., Kathryn E. Lancaster, Miriam Elman, et al.. (2022). Peer-based Retention Of people who Use Drugs in Rural Research (PROUD-R²): a multisite, randomised, 12-month trial to compare efficacy of standard versus peer-based approaches to retain rural people who use drugs in research. BMJ Open. 12(6). e064400–e064400. 5 indexed citations

11.

Hartung, Daniel M., Sheila Markwardt, Kirbee Johnston, et al.. (2022). Association between treatment setting and outcomes among oregon medicaid patients with opioid use disorder: a retrospective cohort study. Addiction Science & Clinical Practice. 17(1). 45–45. 9 indexed citations

12.

Hoffman, Kim, Ximena A. Levander, Ryan Cook, et al.. (2022). Treatment retention, return to use, and recovery support following COVID-19 relaxation of methadone take-home dosing in two rural opioid treatment programs: A mixed methods analysis. Journal of Substance Abuse Treatment. 141. 108801–108801. 42 indexed citations

13.

Cook, Ryan, Caroline King, Paula J. Lum, et al.. (2021). Associations between fentanyl use and initiation, persistence, and retention on medications for opioid use disorder among people living with uncontrolled HIV disease. Drug and Alcohol Dependence. 228. 109077–109077. 12 indexed citations

14.

King, Caroline, Ryan Cook, P. Todd Korthuis, et al.. (2021). Simulating the impact of Addiction Consult Services in the context of drug supply contamination, hospitalizations, and drug-related mortality. International Journal of Drug Policy. 100. 103525–103525. 7 indexed citations

15.

Cook, Ryan, Jennifer A. Fulcher, Nicole H. Tobin, et al.. (2019). Alterations to the Gastrointestinal Microbiome Associated with Methamphetamine Use among Young Men who have Sex with Men. Scientific Reports. 9(1). 14840–14840. 41 indexed citations

16.

Fulcher, Jennifer A., Shehnaz K. Hussain, Ryan Cook, et al.. (2018). Effects of Substance Use and Sex Practices on the Intestinal Microbiome During HIV-1 Infection. The Journal of Infectious Diseases. 218(10). 1560–1570. 41 indexed citations

17.

Cook, Ryan, Karl Peltzer, Stephen M. Weiss, Violeta J. Rodriguez, & Deborah L. Jones. (2018). A Bayesian Analysis of Prenatal Maternal Factors Predicting Nonadherence to Infant HIV Medication in South Africa. AIDS and Behavior. 22(9). 2947–2955. 6 indexed citations

18.

Jones, Deborah L., Deborah A. Kashy, Ndashi Chitalu, et al.. (2014). Risk Reduction Among HIV-Seroconcordant and -Discordant Couples: The Zambia NOW2 Intervention. AIDS Patient Care and STDs. 28(8). 433–441. 17 indexed citations

19.

Crane, Jeff R., et al.. (2014). Do Perceptions of Competence Mediate The Relationship Between Fundamental Motor Skill Proficiency and Physical Activity Levels of Children in Kindergarten?. Journal of Physical Activity and Health. 12(7). 954–961. 64 indexed citations

20.

Cook, Ryan. (1966). Recent Experience in Maternal and Child Health in East Africa.. Journal of Tropical Pediatrics. 12(3). 1 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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