Publications by authors named "Ryan Zahn"

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Assessing the association of stigma and HIV service and prevention uptake among men who have sex with men and transgender women in South Africa.
Carolyn A Brown, Aaron J Siegler, Ryan J Zahn, Rachel K Valencia, Travis Sanchez

AIDS Care· October 2023

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Video selection and assessment for an app-based HIV prevention messaging intervention: formative research.
Martin J Downing, Sarah E Wiatrek, Ryan J Zahn, Gordon Mansergh, Evelyn Olansky

Mhealth· January 2023

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Oral pre-exposure prophylaxis uptake, adherence, and adverse events among South African men who have sex with men and transgender women.
Linda-Gail Bekker, Danielle Giovenco, Stefan Baral, Karen Dominguez, Rachel Valencia, Ryan Zahn

South Afr J HIV Med· November 2022

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Behavioral Efficacy of a Sexual Health Mobile App for Men Who Have Sex With Men: Randomized Controlled Trial of Mobile Messaging for Men.
Patrick Sean Sullivan, Rob Stephenson, Sabina Hirshfield, Cyra Christina Mehta, Ryan Zahn

J Med Internet Res· February 2022

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HIV incidence among men who have sex with men in mainland China: a systematic review protocol.
Wenting Huang, Liming Wang, Mi Guodong, Ryan J Zahn, Jennifer Taussig

Syst Rev· October 2021

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Sexually transmitted infection screening, prevalence and incidence among South African men and transgender women who have sex with men enrolled in a combination HIV prevention cohort study: the Sibanye Methods for Prevention Packages Programme (MP3) project.
Jeb Jones, Travis H Sanchez, Karen Dominguez, Linda-Gail Bekker, Nancy Phaswana-Mafuya, Ryan Zahn

J Int AIDS Soc· October 2020

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HIV prevalence and incidence in a cohort of South African men and transgender women who have sex with men: the Sibanye Methods for Prevention Packages Programme (MP3) project.
Patrick S Sullivan, Nancy Phaswana-Mafuya, Stefan D Baral, Rachel Valencia, Ryan Zahn

J Int AIDS Soc· October 2020

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HIV Prevention Via Mobile Messaging for Men Who Have Sex With Men (M-Cubed): Protocol for a Randomized Controlled Trial.
Patrick Sean Sullivan, Ryan J Zahn, Sarah Wiatrek, Cristian J Chandler, Sabina Hirshfield

JMIR Res Protoc· November 2019

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Peer-assisted learning after onsite, low-dose, high-frequency training and practice on simulators to prevent and treat postpartum hemorrhage and neonatal asphyxia: A pragmatic trial in 12 districts in Uganda.
Cherrie Lynn Evans, Eva Bazant, Innocent Atukunda, Emma Williams, Susan Niermeyer, Ryan Zahn

PLoS One· May 2019

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Human Rights Violations among Men Who Have Sex with Men in Southern Africa: Comparisons between Legal Contexts.
Ryan Zahn, Ashley Grosso, Andrew Scheibe, Linda-Gail Bekker, Sosthenes Ketende

PLoS One· July 2016

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