title: Promising social network research results and suggestions for a research agenda.
authors: National Development and Research Institutes, Inc, New York 10013, USA.
authors: S R
authors: SR
authors: Friedman
mesh_terms: D015658:HIV Infections / Q000517:prevention & control* / Q000635:transmission; D006801:Humans; D012107:Research Design / Q000639:trends*; D012944:Social Support; D015819:Substance Abuse, Intravenous / Q000150:complications / Q000523:psychology*; D014481:United States