This book represents the proceedings of the 3rd International Symposium on Body Surface Mapping (BSM) held at Nijmegen; the Netherlands, from 11th to 13th of June, 1985, under the auspices of the International Council on Electrocardiology. This meeting brought together a group of international scientists en- gaged in the field of the study of electrocardiographic body surface po- tentials. Previous meetings of this kind took place at Burlington, Vt; U.S.A. in 1972, organized by Rush and Lepeschkin, and in 1982 at Tokyo or- ganized by Yamada, Harumi and Musha. The special aims of this 3rd International Symposium were: - to take stock of recent theoretical, technical, clinical and analytical advances - to discuss and stimulate future developments with respect to internatio- nal cooperation - to discuss promising clinical applications of the BSM technique A number of scientists engaged in this field had been invited to parti- cipate in this meeting, either by presenting a formal, introductory lec- ture, or by presenting a poster devoted to their more recent work. The ~n- vitation list was made up following suggestions of the scientific com- mittee for this meeting, the members of which were: (Parma; Italy) Prof.Dr. B. Taccardi Prof.Dr. F.A. Roberge (Montreal; Canada) Prof.Dr. A. van Oosterom (Nijmegen; The Netherlands). The organizing committee noted with great satisfaction that almost all people invited were indeed able to attend.

The Boerhaave Committee for postgraduate Medical Education decided to organize a course on cancer treatment covering selected solid tumors, in which they felt important chan ges were emerging in the basic biologic, diagnostic and therapeutic concepts. Current management of cancer patients is intimately dependent on precise morphologic diagnosis, clinical staging and the proper application of all treat ment modalities. Many prominent investigators and clinicians of major can cer centers in the United States, Canada, and Europe con tributed by lecturing and during the panel discussions. This book is the tangible outcome of the productive ex changes during the meeting held December 6-8, 1979. In ovarian cancer the usefulness of histologic grading in determining prognosis has become clear. The most impor tant advance for the management of the patient is th- careful staging procedure, based on new concepts of tumor spread coupled with treatment tailored to the extent of disease. Survival appears to be directly related to the extent of the tumor mass. This has resulted in description and application of optimal cyto-reductive surgery. Radiotherapy and chemotherapy can both effectively eradi cate small amounts of tumor."