Mauricio Goihman-Yahr1, Lawrence Charles Parish2. 1. Full Member-Elect (Individuo de Número) of the National Academy of Medicine in Venezuela, and Emeritus Professor and Chairman of Dermatology and Immunology, Vargas School of Medicine, Central University of Venezuela, Caracas, Venezuela. Electronic address: mgoihmanyahr@yahoo.com. 2. Department of Dermatology and Cutaneous Biology and the Jefferson Center for International Dermatology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, Pennsylvania, USA.