A Medicine and Surgery graduate from the Lisbon School of Medicine, António Gentil Martins divided his career between the Portuguese Institute of Oncology and the Hospital D. Estefânia. He will forever go down in Portugal’s Medicine history as the surgeon who, 40 years ago, performed the first operation to separate Siamese twins in the country. Among the various associations and institutions that he is part of, he is the only Member of Honour in the world, besides being founder of international associations working in the areas of Paediatric Oncology. He has been given many awards and distinctions, including the Grand Cross of the Order of Infante D. Henrique, the Gold Medal of the Ministry of Health and the Grand Necklace of the Directorate-General for Health. At the end of 2018, he ceased his duties as president of CAVT – Centro de Apoio a Vítimas de Tortura/Portugal, a social solidarity institution of which he was a founder and where he remains vice-president of the Board.