title: Ethical considerations in surveys employing respondent-driven sampling.
authors.forename: Salaam
authors.initials: S
authors.lastname: Semaan
authors.forename: Douglas D
authors.initials: DD
authors.lastname: Heckathorn
authors.forename: Don C
authors.initials: DC
authors.lastname: Des Jarlais
authors.forename: Richard S
authors.initials: RS
authors.lastname: Garfein
mesh_terms: D004992:Ethics, Medical; D015658:HIV Infections / Q000523:psychology; D006306:Health Surveys; D006801:Humans; D012307:Risk Factors; D012494:Sampling Studies; D015819:Substance Abuse, Intravenous / Q000523:psychology