Enrolled at the Medical School of Ehrlangen, Germany, where he learned to handle new techniques in the treatment of breast and womb cancer. He travels to the Medical School of Strasbourg, Vienna, where he expands his knowledge in bladder cancer. In this tour of the Old Continent, he could not miss an educational stop in the city of Seine, Paris, nothing less than at the Curie Institute, to study the wonders of radium in cancer patients, being one of the first disciples of this institution. There he met with the highest eminences in this field. This is how Dr. Gonzalez Martinez prepares to face this new challenge, the treatment for the cancer disease that continued to increase in Puerto Rico. He returns to the island and begins to treat cancer using the methods acquired in France, based on the premise that "Prevention and Early Diagnosis" should be our major focus. He is fully dedicated to treating cancer patients and after six years of providing treatment and studying cancer as such, he presents to the Medical Association of Puerto Rico his first communication on the clinical observations and results obtained with these cancer patients.