I actively participate in the Cancer Prevention Center development with the goal to initiate and carry out innovative prevention and prevention research projects in France. For several years now, we have been turning to intervention and implementation researches. In this context, population involvement, social representations of health and the understanding of how are received prevention’s messages are major thematic areas to which I have contributed very actively. I have carried out several studies on the relationship between populations and healthcare institutions (GPs, hospitals and organized screening centers), taking into account the issue of inequalities. Share decision making in cancer care, patient activation, inequalities in cancer survivors have been addressed in several studies. People’s access to organized screening was addressed in terms of informed decision making and motivations for participation for the population but also for GPs and pharmacists.