title: [Respondent-driven sampling for the study of difficult access populations].
authors.affiliation: Centro Nacional de Epidemiología, Instituto de Salud Carlos III, Madrid, España.
authors.forename: Luis
authors.initials: L
authors.lastname: Sordo
authors.forename: Sabina
authors.initials: S
authors.lastname: Pérez-Vicente
authors.forename: Maria M
authors.initials: MM
authors.lastname: Rodríguez Del Águila
authors.forename: M José
authors.initials: MJ
authors.lastname: Bravo
mesh_terms: D035041:Anonymous Testing; D003142:Communication; D006801:Humans; D009042:Motivation; D018579:Patient Selection; D010379:Peer Group; D018401:Sample Size; D012494:Sampling Studies; D062487:Social Marginalization; D060756:Social Networking