On May 11, 1993, in Barcelona, a round table was held on cancer research in Spain, ranging from molecular biology to clinics. The twelve submissions were moderated by Joan Bigorra, from Química Farmacéutica Bayer, and are gathered in Dr. Antonio Esteve’s Monograph number 15. The topics discussed were, among others, colon cancer epidemiology, preclinical evaluation of cytostatics, chemotherapy resistance, or genetic manipulation in oncology.