Division of Human Reproduction, Hospital das Clínicas–Universidade Federal de Minas Gerais, Belo Horizonte, Brazil (M.C.); Infertility Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy (M.R., M.C.P., G.D.S., L.B., E.S., P.V.); and Department of Clinical Sciences and Community Health, Universita degli Studi di Milano, Milan, Italy (P.V., E.S.)