title: Proceedings: Proliferation and differentiation of trophoblast in the rat placenta.
mesh_terms: D000818:Animals; D001345:Autoradiography; D002454:Cell Differentiation; D002455:Cell Division; D005260:Female; D005865:Gestational Age; D010920:Placenta / Q000502:physiology; D011247:Pregnancy; D051381:Rats; D014316:Tritium; D014327:Trophoblasts / Q000502:physiology* / Q000648:ultrastructure
chemical_list: D014316:Tritium