Prenatal diagnosis of spontaneous thrombosis of the umbilical artery during the third trimester of pregnancy. - Afriat,R.; Bidat,L.; Fortier,F.; Guibert,M.; Bercau,G.; Sauvanet,E.; Freund,M.; de Kermadec-Barrier,S. (J Gynecol Obstet Biol Reprod, 1995)