Authors: J N Macri; R V Kasturi; D A Krantz; E J Cook; N D Moore; J A Young; K Romero; J W Larsen Journal: Am J Obstet Gynecol Date: 1990-10 Impact factor: 8.661
Authors: N J Wald; H S Cuckle; J W Densem; K Nanchahal; P Royston; T Chard; J E Haddow; G J Knight; G E Palomaki; J A Canick Journal: BMJ Date: 1988-10-08