[1] Rutgers New Jersey Med Sch, Dept Dermatol, Newark, NJ USA
[2] All India Inst Med Sci, Dept Dermatol & Venereol, Patna, Bihar, India
[3] Univ New South Wales, St George Hosp, Dept Dermatol, Fac Med, Sydney, NSW, Australia
[4] Cent Michigan Univ, Coll Med, Saginaw, MI USA
[5] IM Sechenov First Moscow State Med Univ, Dept Dermatol & Venereol, Moscow, Russia
[6] Univ Studies Guglielmo Marconi, Dept Dermatol, Rome, Italy
[7] Univ Studies Guglielmo Marconi, Rome, Italy
[8] Univ Hosp Basel, Dept Dermatol, Basel, Switzerland