Hemophilia: A prenatal diagnosis by factor VIII clotting activity using percutaneous umbilical blood samplingPO-MO-118FANG, Y.ZHANG, X.AN, L.TENG, B.CHENG, Y.Author informationShandong Blood Center Shandong Hemophilia Center, Jinan, ChinaHaemophilia 18:p 102, July 2012.Copyright © 2012 Blackwell Publishing Ltd.