“…According to clinical experts and the published literature ( Slof, 2010 ), these doses are most commonly used in women of advanced maternal age (mean age 38 years). Other studies undertaken in Spain, in other European countries and in the United States of America also report using a daily dose of 300 IU rFSH for all days of controlled ovarian stimulation ( Berkkanoglu and Ozgur, 2010 , Delgado-García et al, 2015 , Drakopoulos et al, 2017 , Gleicher et al, 2015 , Naether et al, 2015 , Revelli et al, 2015 , Rubio et al, 2017 , Ubaldi et al, 2016 ), or during the additional days of controlled ovarian stimulation after administering 150 μg corifollitropin alfa on the first day ( Nielsen et al, 2016 , Polyzos et al, 2013a , Polyzos et al, 2013b ).…”