title: Exclusion of haemophilia B in male fetus by chorionic villus biopsy.
mesh_terms: D002824:Chorionic Villi; D004262:DNA Restriction Enzymes; D005260:Female; D002836:Hemophilia B / Q000175:diagnosis* / Q000235:genetics; D006579:Heterozygote; D006801:Humans; D008297:Male; D010375:Pedigree; D011247:Pregnancy; D011296:Prenatal Diagnosis
chemical_list: D004262:DNA Restriction Enzymes