Sectors: Research and Academia, Entrepreneurs. Roberval de Campos is physician at Faculty of Medical Sciences, Universidade São Francisco, Brazil. Roberval completed his medical residency in Nuclear Medicine, in the Radioisotope Services of the Hospital das Clínicas of the Faculty of Medicine of São Paulo, under the guidance of Prof. Dr. Júlio C. Kieffer, between 1979 and 1980. He also complete...