and collaborators succeeded in proving met. We became acquainted during a their existence in the laboratory. General Meeting of the Board of Directors Cryosurgery is an alternative choice for of the European Society of Cryosurgery; I the treatment of selected patients with in was very impressed with his intelligence, ternal tumors. 1. S. Cooper, as long ago as energy and determination. He is an inno vative researcher, a scientist and a therapist, 1963, suggested the use of cryosurgery for the destruction of primary and metastatic with a good sense of leadership. Professor tumors of the liver, because cryosurgery Korpan has dedicated himself especially to has several well-known advantages over the study of the surgical treatment of the liver, bile ducts and pancreas, has pub classic surgery: 1) it is effective in inducing tumor cell necrosis; 2) it spares more nor lished many papers and is the author of mal tissue than resection, with less risk of three books. Co-founder in 1997 and vice hemorrhage and dissemination of cancer president of the European Society of Cryo cells; 3) it makes the treatment of unresec surgery, he is also founder and presi table tumors possible, particularly those dent of the Vienna International Institute involving large vessels; 4) it allows re for Cryosurgery. Also an inventor, he has treatment; 5) it may induce an immuno devised 31 patents, some of which are stimulating effect against residual cancer.