Evaluation of a mobile mammography unit: concepts and randomized cluster trial protocol of a population health intervention research to reduce breast cancer screening inequalities oleh Elodie Guillaume, Quentin Rollet, Ludivine Launay, Séverine Beuriot, Olivier Dejardin, Annick Notari, Elodie Crevel, Ahmed Benhammouda, Laurent Verzaux, Marie-Christine Quertier, Guy Launoy