[1] Univ Utah, Sch Med, Salt Lake City, UT USA
[2] St Josephs Hosp Hlth Ctr, Dept Family Med, Syracuse, NY USA
[3] Univ Utah, Dept Internal Med, Salt Lake City, UT 84112 USA
[4] Univ Utah, Dept Dermatol, Salt Lake City, UT USA
[5] Univ Texas Southwestern, Dept Dermatol, Dallas, TX USA
[6] Univ Rochester, Dept Dermatol, Med Ctr, Rochester, NY 14627 USA
[7] Revere Hlth, Provo, UT USA