Poster Contest FinalistsCrowdsourcing to Promote HIV Testing among MSM in China: A Pragmatic Stepped Wedge Randomized Controlled Trial of a Crowdsourced InterventionAuthorsT. ZhangW. TangT. SESH study groupJ. TuckerYear: 2017Volume: 83 Issue: 1Page/Article: 6DOI: 10.1016/j.aogh.2017.03.012Published on Apr 7, 2017Peer ReviewedCC BY 4.0