title: Electron microscopic study of the "X-cells" in septal cysts of the human placenta.
mesh_terms: D004717:Endometrium / Q000166:cytology; D004721:Endoplasmic Reticulum; D005260:Female; D006801:Humans; D008297:Male; D008853:Microscopy; D008854:Microscopy, Electron; D010920:Placenta / Q000166:cytology*; D011247:Pregnancy; D014327:Trophoblasts / Q000166:cytology