TY - JOUR A1 - Manhart, L.E. A1 - Aral, S.O. A1 - Holmes, K.K. A1 - Foxman, B. T1 - Sex partner concurrency: measurement, prevalence, and correlates among urban 18-39-year-olds Y1 - 2002 DO - 10.1097/00007435-200203000-00003 JF - Sexually Transmitted Diseases VL - 29 IS - 3 SP - 133 EP - -143 ER -