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Using a 2-Stage Strategy with Respondent-Driven Sampling to Recruit a Hard-to-Reach Population for a Placebo Microbicide Gel Clinical Trial in Nellore, Andhra Pradesh (India)

Crossref DOI link: https://doi.org/10.1007/s10461-014-0938-1

Published Online: 2014-11-11

Published Print: 2015-02

Update policy: https://doi.org/10.1007/springer_crossmark_policy

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