Pascal Pujol is a professor of medicine and head of the oncogenetics department at the University Hospital of Montpellier. He has carried out research work at INSERM and then at CNRS (co-author of nearly 200 scientific publications) and was national coordinator of therapeutic trials. He is currently President of the French Society of Predictive and Personalized Medicine and author of books for the general public ("Voulez-vous savoir", humenSciences; "Questions Cancer", Actes Sud). Pascal Pujol is also an expert for the INCa, the Biomedicine Agency and the HAS, as well as for the courts.