TY - JOUR A1 - Killworth, P.D. A1 - Johnsen, E.C. A1 - McCarty, C. A1 - Shelley, G.A. A1 - Bernard, H.R. T1 - A social network approach to estimating seroprevalence in the United States Y1 - 1998 DO - 10.1016/S0378-8733(96)00305-X VL - 20 IS - 1 ER -