Authors: L M Koonin; T V Ellerbrock; H K Atrash; M F Rogers; J C Smith; C J Hogue; M A Harris; W Chavkin; A L Parker; G J Halpin Journal: JAMA Date: 1989-03-03 Impact factor: 56.272
Authors: B Hoegsberg; O Abulafia; A Sedlis; J Feldman; D DesJalais; S Landesman; H Minkoff Journal: Am J Obstet Gynecol Date: 1990-10 Impact factor: 8.661