TY - JOUR A1 - Johnston, L.G. A1 - Malekinejad, M. A1 - Kendall, C. A1 - Iuppa, I.M. A1 - Rutherford, G.W. T1 - Implementation challenges to using respondent-driven sampling methodology for HIV biological and behavioral surveillance: Field experiences in international settings Y1 - 2008 DO - 10.1007/s10461-008-9413-1 JF - AIDS and Behavior VL - 12 ER -