title: AN ULTRASTRUCTURAL STUDY OF DIFFERENTIATION AND MATURATION OF TROPHOBLAST OF THE MONKEY.
mesh_terms: D000818:Animals; D006063:Chorionic Gonadotropin; D004583:Electrons; D005321:Extraembryonic Membranes; D005260:Female; D006062:Gonadotropins; D000882:Haplorhini; D006653:Histology; D008853:Microscopy; D008854:Microscopy, Electron; D010920:Placenta; D011247:Pregnancy; D012106:Research; D014327:Trophoblasts
chemical_list: D006063:Chorionic Gonadotropin; D006062:Gonadotropins
keywords: EXPERIMENTAL LAB STUDY; FETAL MEMBRANES; GONADOTROPINS, CHORIONIC; HISTOLOGY; MICROSCOPY, ELECTRON; MONKEYS; PLACENTA