title: Historical comment on the debate: embryo implantation is the rubicon for the GnRH antagonist, and answer.
authors.forename: R
authors.initials: R
authors.lastname: Bernabeu
mesh_terms: D010064:Embryo Implantation / Q000187:drug effects*; D005260:Female; D007987:Gonadotropin-Releasing Hormone / Q000037:antagonists & inhibitors*; D006801:Humans
chemical_list: D007987:Gonadotropin-Releasing Hormone