[1] Oregon Hlth & Sci Univ, Dept Dermatol, Portland, OR 97201 USA
[2] Cent State Med Acad, Dept Dermatol, Moscow, Russia
[3] Epiphany Dermatol, Dept Mohs Microg & Reconstruct Surg, Austin, TX USA
[4] Virginia Commonwealth Univ, Dept Dermatol, 401 North 11th St Suite 520, Richmond, VA 23298 USA