title: [Study on invasion of human amnion by malignant tumor cells].
authors.forename: Z J
authors.initials: ZJ
authors.lastname: Liu
mesh_terms: D000650:Amnion / Q000648:ultrastructure*; D002460:Cell Line; D046508:Culture Techniques; D006801:Humans; D009303:Nasopharyngeal Neoplasms / Q000473:pathology*; D009361:Neoplasm Invasiveness; D012516:Osteosarcoma / Q000473:pathology*