Affiliation: | 1.Department of Sociology, Purdue University, 700 W. State Street, West Lafayette, IN, 47907, USA ;2.MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa ;3.Department of African American Studies and Sociology, University of Maryland, 1119 Taliaferro Hall, College Park, MD, 20742, USA ; |