The place of chorionic biopsy.
D001706:Biopsy / Q000379:methods*; D002823:Chorion / Q000473:pathology*; D002869:Chromosome Aberrations / Q000175:diagnosis; D025063:Chromosome Disorders; D005260:Female; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000379:methods