[1] Univ Texas Austin, Dept Internal Med, Div Dermatol, Dell Med Sch, 1601 Trinity St,Stop Z0900, Austin, TX 78712 USA
[2] Univ Texas Austin, Dell Med Sch, Div Dermatol, Austin, TX USA
[3] Univ Texas Austin, Dell Med Sch, Dept Internal Med, Austin, TX USA
[4] Univ Connecticut, Dept Allied Hlth Sci, Storrs, CT USA
[5] Univ Texas Austin, Dept Surg & Perioperat Care, Dell Med Sch, Austin, TX USA
[6] Univ Texas Austin, Livestrong Canc Inst, Austin, TX USA
[7] MaineHlth Inst Res, Scarborough, ME USA
[8] Tufts Univ, Dept Med, Sch Med, Boston, MA USA
[9] Univ Texas Hlth Sci Ctr San Antonio, Ctr Res Adv Community Hlth, Long Sch Med, San Antonio, TX USA
[10] Univ Texas Hlth Sci Ctr San Antonio, Long Sch Med, Dept Med, San Antonio, TX, Chile
[11] Univ Texas Austin, Dept Populat Hlth, Dell Med Sch, Austin, TX USA