Administration of corifollitropin alfa on Day 2 versus Day 4 of the cycle in a GnRH antagonist protocol: A randomized controlled pilot study. - Blockeel, C.; Polyzos, N.P.; Derksen, L.; De Brucker, M.; Vloeberghs, V.; van de Vijver, A.; De Vos, M.; Tournaye, H. (Human Reproduction, 2014)