Electron microscopic studies on the human placenta in the first trimester of pregnancy.
D005260:Female; D006056:Golgi Apparatus / Q000648:ultrastructure; D006801:Humans; D010920:Placenta / Q000648:ultrastructure*; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D014327:Trophoblasts / Q000648:ultrastructure