[1] Univ Texas Rio Grande Valley, Dept Internal Med, 1401 E 8th St, Weslaco, TX 78596 USA
[2] Univ Colorado, Dept Dermatol, Anschutz Med Campus, Aurora, CO USA
[3] Palo Alto Fdn Med Grp, Dept Dermatol, 401 Old San Francisco Rd, Sunnyvale, CA 94086 USA
[4] Univ Texas Southwestern Med Ctr, Dept Dermatol, 5323 Harry Hines Blvd, Dallas, TX 75390 USA
[5] 1665 Aurora Court 3rd Floor, Room 3232, Aurora, CO 80045 USA