title: Scanning electron-microscopic observations of midtrimester amniotic fluid cells.
mesh_terms: D000328:Adult; D000653:Amniotic Fluid / Q000166:cytology*; D005260:Female; D006801:Humans; D008854:Microscopy, Electron; D008855:Microscopy, Electron, Scanning; D011247:Pregnancy; D011262:Pregnancy Trimester, Second