Infection and chorionic villus sampling.
D001706:Biopsy / Q000009:adverse effects*; D002824:Chorionic Villi / Q000473:pathology*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000175:diagnosis / Q000209:etiology*; D012306:Risk; D014591:Uterine Diseases / Q000209:etiology