TY - JOUR A1 - Kohler, H. P. A1 - Behrman, J.R. A1 - Watkins, S. C. T1 - Social Networks, {HIV/AIDS} and Risk Perceptions Y1 - 2007 DO - 10.1353/dem.2007.0006 JF - Demography VL - 44 IS - 1 SP - 1 EP - -33 ER -