title: Derivation of the vascular elements in the fetal cotyledon of the hemochorial placenta: a contribution to the theory of placental morphogenesis.
mesh_terms: D002455:Cell Division; D005260:Female; D005333:Fetus / Q000033:anatomy & histology* / Q000098:blood supply*; D006439:Hemodynamics; D006801:Humans; D010060:Ovulation; D010920:Placenta / Q000033:anatomy & histology* / Q000098:blood supply*; D011247:Pregnancy