Professor Katsambas is a Professor of Dermatology and Venereology of the University of Athens in Greece and head of the Dermatology Clinic at Hygeia Hospital. Earlier appointments include President of the Hellenic Society of Dermatology and Venereology, President of the European Academy of Dermatology and Venereology as well as Secretary-General; Board member of the International League of Dermatological Societies; International member of the American Dermatological Association and more recently, International Board Observer of the American Academy of Dermatology and President-elect of the European Society of Cosmetic and Aesthetic Dermatology (ESCAD). Professor Katsambas has over 380 published manuscripts in international medical journals and numerous books. Professor Lotti is Full Professor of the Dermatology and Venereology at University of Studies Guglielmo Marconi, Rome, Italy. He is President of the World Health Academy, Dermatology since 2013. Director , Centro Studiper la Ricerca Multidisciplinare Rigenerativa (CSRMR), of the University of Rome “G.Marconi”, Rome, Italy, since 2015. He is Honorary Professor of Dermatology - China Medical University Shenyang (2011), Lecturer at the New York Academy of Sciences "Howard Fox Memorial Lecture" (14 March 2012 - New York, NY – USA), and Chair, Executive Scientific Committee Vitiligo Research Foundation, New York , NY USA. He has been Full Professor of the Dermatology and Venereology Division at University of Florence School of Medicine, Florence, Italy, from 2006 to 2010. He is Visiting Professor in six International Universities worldwide, and Key Note Lecturer in several international dermatology Societies. He has authored 1507 scientific publications (577 peer reviewed articles, 288 books chapters and 365 abstracts). Doctor Clio Dessinioti is a Dermatologist-Venereologist and a clinical/research fellow at the Department of Dermatology of the University of Athens, in Andreas Syggros Hospital, Greece, since 2007. Dr Dessinioti has published more than 60 articles in peer-reviewed medical journals and has special interest in skin cancer and acne. She has been invited as a speaker in international meetings and is the author of chapters in 7 books. She was editor of the 3rd Edition of the European Handbook of Dermatology and Venereology (Springer 2015). Doctor Angelo Massimiliano D’Erme is a Dermatologist-Venereologist, and consultant at the Unit of Dermatology, Livorno Hospital. He focused his research on inflammatory diseases, mainly in atopic and allergic eczema, and on dermatosurgery. Moreover, he is a Scientific reviewer of several sectorial journals, among which are the Journal of European Academy of Dermatology ,and Dermatologic Therapy. He has authored more than 70 peer-reviewed medical journals and 12 books chapters. He was editor of the 3rd Edition of the European Handbook of Dermatology and Venereology (Springer 2015).