Reproductive Medicine, 015-019 | DOI: 10.53260/EGO.235014 Influence of the onset of menopause before and after age 50 on bone mineral density Oslei de Matos, Brenda Lenardt, Isabela C. de Lima, Gabriel Furlan, Tsuani Yamaguishi, André Domingos Lass, Camil Castelo-Branco