[1] Acne Treatment & Res Ctr, Brooklyn, NY USA
[2] Johns Hopkins Univ, Sch Med, Dept Dermatol, Ethn Skin Program, Baltimore, MD 21205 USA
[3] Radboud Univ Nijmegen, Med Ctr, Nijmegen, Netherlands
[4] Andriessen Consultants, Malden, Netherlands
[5] Florida Atlantic Univ, Boca Raton, FL 33431 USA
[6] Arkansas Res Trials, Arkansas Dermatol Skin Canc Ctr, Little Rock, AR USA
[7] Icahn Sch Med Mt Sinai, Dept Dermatol, New York, NY 10029 USA
[8] Audubon Dermatol, New Orleans, LA USA
[9] Tulane Univ, New Orleans, LA 70118 USA
[10] Louisiana State Univ, New Orleans, LA USA
[11] Wake Forest Sch Med, Winston Salem, NC 27101 USA
[12] Weill Cornell Med Coll, New York, NY USA
[13] Northwestern Univ, Dept Dermatol, Feinberg Sch Med, Chicago, IL 60611 USA
[14] Med Dermatol Associates Chicago, Chicago, IL USA
[15] Westmed Med Grp, Purchase, NY USA
[16] Columbia Univ, Irving Med Ctr, New York, NY USA
[17] Miller Univ Miami, Sch Med, Frost Dept Dermatol & Cutaneous Surg, Miami, FL USA
[18] Mt Sinai Hosp, Dept Dermatol, New York, NY 10029 USA