Doctor José Ignacio Martín Valadés, new Head of Digestive Tumour Section in MD Anderson Cancer Center Madrid – Hospiten Published on 02/03/2020 With more than ten years' experience in treating patients with digestive tumours in the Fundación Jiménez Díaz, Dr José Ignacio Martín Valadés joins the MD Anderson Cancer Center Madrid – Hospiten as the new head of the Digestive Tumours Section in the Medical Oncology Service.