A L Tatu1, V Clatici2, V Cristea3. 1. Department of Dermatology, Faculty of Medicine and Pharmacy, University Dunarea de Jos, Galati, Romania. dralin_tatu@yahoo.com. 2. Department of Dermatology, Elias Emergency Hospital, Bucharest, Romania. 3. Department of Laboratory Medicine, University of Medicine and Pharmacy Carol Davila, Bucharest, Romania.