Waldemar L. Olszewski, M.D., Ph.D. is Professor of Surgery and Director of the Department of Surgical Research and Transplantology at the Medical Research Center, Polish Academy of Sciences in Warsaw, Poland. Dr. Olszewski graduated from the Medical Faculty, Medical Academy in Warsaw, receiving his M.D. degree in 1954 and Ph.D. degree in 1962. He obtained his surgical training in the Surgical Division, Warsaw City Hospital and then Department of Surgery, Medical Academy, Warsaw. He served as an Assistant Professor at the Medical Academy and the Medical Research Center from 1962 to 1968 and as Associate Professor from 1968 to 1978. In 1978 he became Professor of Surgery. From 1962 to 1975 he was Deputy Director of the Department of Surgical Research, Medical Research Center and in 1975 he assumed the position of Director. Since 1974 he has been associated with the Laboratory of Hematology and Lymphology, Norwegian Radium Hospital, in Oslo, Norway., Dr. Olszewski was a Research Fellow at the Royal Postgraduate Medical School in London from 1962 to 1963 and at the Peter Bent Brigham Hospital, Harvard Medical School, Boston, in 1968 and 1969. Dr. Olszewski is a member of the European Society for Surgical Research, International Lymphological Society, International Microsurgical Society, and the International Transplantation Society. He served as President of the European Society for Surgical Research from 1977 to 1978 and as a member of the Executive Committee until 1982. He was elected President of the International Society of Lymphology for the term 1989–1993. He is Associate Editor of Lymphology, Zeitschrift für Experimentelle Chirurgie, Transplant International, Angiology International , and Immunologia Polska. He is also Honorary Member of the Brazilian Vascular Society and the Korean Medical Association. Recently he founded the Polish-Japanese Surgical Society, and started cooperation in treatment of lymphedema with the National Lymphedema Network of America and