Department of Dermatology, American University of Beirut Medical Center, Beirut, Lebanon.

Correspondence: Ossama Abbas, MD, Professor, Department of Dermatology, American University of Beirut Medical Center, Riad El Solh, P.O. Box 11-0236, Beirut 1107 2020, Lebanon (e-mail: [email protected]).

The authors declare no conflicts of interest.