Authors: G Pardi; I Cetin; A M Marconi; A Lanfranchi; P Bozzetti; E Ferrazzi; M Buscaglia; F C Battaglia Journal: N Engl J Med Date: 1993-03-11 Impact factor: 91.245
Authors: P W Soothill; R A Ajayi; S Campbell; E M Ross; D C Candy; R M Snijders; K H Nicolaides Journal: Ultrasound Obstet Gynecol Date: 1992-03-01 Impact factor: 7.299