title: Trophoblast samples suitable for long-term culture.
abstract: Chorionic villi were obtained by a direct vision technique. Villi without vessels (38 cases) failed to grow in vitro, irrespective of the amount of tissue. Vascular villi with an estimated weight exceeding 5 mg (71 cases) grew in vitro--with two exceptions.
mesh_terms: D001706:Biopsy; D002455:Cell Division; D002478:Cells, Cultured; D002824:Chorionic Villi / Q000473:pathology; D004724:Endoscopy; D005260:Female; D006801:Humans; D011247:Pregnancy; D013048:Specimen Handling / Q000379:methods*; D013997:Time Factors; D014327:Trophoblasts / Q000166:cytology*