1. Center for Dermatology and Hair Diseases Professor Trüeb Zurich‐Wallisellen Switzerland
2. Department of Dermatology Cantonal Hospital Aarau Aarau Switzerland
3. Department of Dermatology Centro de Ciências Médicas Universidade Federal Fluminense Hospital Universitário Antonia Pedro Niterói – Rio de Janeiro Brazil
4. Department of Dermatology Alvaro Alvim School Hospital Campos dos Goytacazes, Rio de Janeiro Brazil