[1] George Washington Univ, Dept Med, Washington, DC USA
[2] Fred Hutchinson Canc Res Ctr, Seattle, WA 98104 USA
[3] Univ Alabama Birmingham, Dept Med, Birmingham, AL 35294 USA
[4] Vet Affairs Med Ctr, Birmingham, AL USA
[5] Univ Massachusetts, Sch Med, Dept Prevent & Behav Med, Worcester, MA USA
[6] CUNY Bernard M Baruch Coll, Sch Publ Affairs, New York, NY 10010 USA
[7] Univ Florida, Dept Med, Gainesville, FL USA
[8] Harbor UCLA Res & Educ Inst, Torrance, CA USA
[9] Cook Cty Hosp, Dept Obstet & Gynecol, Chicago, IL 60612 USA