title: Addendum from Portugal--how about an annotated IFFS surveillance for the new millennium?
authors.forename: P G
authors.initials: PG
authors.lastname: McDonough
mesh_terms: D015925:Cryopreservation; D004622:Embryo, Mammalian; D004992:Ethics, Medical; D006801:Humans; D007391:International Cooperation; D011174:Portugal; D012042:Registries / Q000592:standards*; D012099:Reproductive Techniques / Q000592:standards*