title: Transabdominal chorionic villi sampling.
mesh_terms: D000005:Abdomen; D001707:Biopsy, Needle / Q000379:methods; D002824:Chorionic Villi / Q000473:pathology*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000379:methods*