||Prof. Arie Orenstein MD., Director of the The Goldschleger Advanced Technology Center. Prof. Orenstein is board certified in Plastic Surgery and serves as the Director of the Sheba Medical Center Department of Plastic and Reconstructive Surgery and Burns. Prof. Orenstein is an internationally recognized expert on the applications of lasers in medicine, and in particular the clinical application of Photodynamic Therapy (PDT), an experimental method utilizing light for the cure of Skin Cancer. While working both in Israel and abroad, he pioneered the use of novel laser systems and also contributed to the understanding, at the microscopic level, of the fundamental role of oxygen molecules in PDT. For 12 years, Prof. Orenstein served as Co-Chairman of the Israel Medical Association and he was the Israeli representative on the board of the World Medical Association for 15 years. Orenstein is a member of numerous professional organizations dealing with the technical and ethical challenges of medicine.