1. From the Departments of Pediatric Imaging (M.F., V.H., S.F.A., C.A.), Epidemiology and Public Health (A.R., J.P.T.), and Adolescent and Young Adult Gynecology Unit (L.D.), Centre for Research in Epidemiology and Population Health, INSERM U1018, 63 rue Gabriel Péri, 94276 Le Kremlin Bicêtre, France (A.R., J.P.T); and Faculty of Medicine, Paris Sud University, Le Kremlin Bicêtre, France (A.R., C.A.).