[1] Northwestern Univ, Feinberg Sch Med, Med Social Sci, 625 N Michigan Ave,14-049, Chicago, IL 60611 USA
[2] Northwestern Univ, Inst Sexual & Gender Minor Hlth & Wellbeing, Evaluat Data Integrat & Tech EDIT Assistance Prog, Chicago, IL 60611 USA
[3] Ann & Robert H Lurie Childrens Hosp Chicago, Pediat, Chicago, IL 60611 USA
[4] AIDS Fdn Chicago, Chicago, IL USA
[5] Kalamazoo Coll, Dept Anthropol & Sociol, Kalamazoo, MI 49007 USA
[6] Univ Illinois, Dept Sociol, Chicago, IL 60680 USA