作者单位:Clinica Valle Giulia, G.EN.E.R.A Centre for Reproductive Medicine, Via G. De Notaris 2, Rome 00197[1]IVI, Plaza de la Policia Local 3, Valencia 46015, Spain[2]Fondazione Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy[3]BGI Ark Biotechnology, Beishan Industrial Zone, Yantian District, Shenzhen 518083, China[4]