1 Dermatology Department, University Hospital of Heraklion, Crete, Greece.
2 Department of Dermatology and Venereology, Andreas Sygros Hospital, National and Kapodistrian University of Athens, Medical School of Athens, Athens, Greece.
3 1st Department of Internal Medicine, Sismanoglio General Hospital, Athens, Greece.
4 Department of Surgery II, Witten/Herdecke University, Witten, Germany.
5 Department of Medical Oncology, General Oncological Hospital of Kifisia, " Agioi Anargyroi", Athens, Greece.
6 2nd Department of Dermatology and Venereology, National and Kapodistrian University of Athens, Medical School, "Attikon" General University Hospital, Athens, Greece.