[1] Univ Texas, Hlth Sci Ctr, Dept Dermatol, Houston, TX USA
[2] Univ Calif Irvine, Dept Dermatol, Irvine, CA 92717 USA
[3] Baylor Coll Med, Dept Med, Div Infect Dis, Houston, TX USA
[4] Univ Texas, Sch Publ Hlth, Ctr Hlth Sci, Houston, TX USA
[5] Univ Texas, Hlth Sci Ctr, Dept Med, Div Infect Dis, Houston, TX USA
[6] Ctr Clin Studies, Houston, TX USA