Authors: E Miller; J W Hare; J P Cloherty; P J Dunn; R E Gleason; J S Soeldner; J L Kitzmiller Journal: N Engl J Med Date: 1981-05-28 Impact factor: 91.245
Authors: G D Roversi; M Gargiulo; U Nicolini; E Pedretti; A Marini; V Barbarani; P Peneff Journal: Am J Obstet Gynecol Date: 1979-11-01 Impact factor: 8.661