1. Department of Sociology, University of Utah, 380 S 1530 E RM 301, Salt Lake City, UT 84112-0250, USA,
2. Department of Sociology, Ohio State University, 300 Bricker Hall, 190 North Oval Mall, Columbus, OH 43210-1353, USA, browning.90@sociology
3. Department of Health Studies, University of Chicago, 5841 South Maryland Avenue, MC 2007, Chicago, Illinois 60637, USA,