Wan, M [Clinical uses of percutaneous umbilical cord blood sampling in prenatal diagnosis]. [electronic resource] - Zhonghua fu chan ke za zhi Jul 1988 - 215-7, 253 p. digital Publication Type: English Abstract; Journal Article ISSN: 0529-567X Subjects--Topical Terms: Blood Specimen Collection--methodsFemaleFetal BloodHumansPregnancyPrenatal Diagnosis--methodsUltrasonography