title: Classics revisited: the Yale embryo. 1938.
authors.forename: E M
authors.initials: EM
authors.lastname: Ramsey
mesh_terms: D004622:Embryo, Mammalian / Q000033:anatomy & histology; D004626:Embryology / Q000266:history*; D005260:Female; D049673:History, 20th Century; D006801:Humans; D011247:Pregnancy