Authors: M L Freeman; D B Nelson; S Sherman; G B Haber; M E Herman; P J Dorsher; J P Moore; M B Fennerty; M E Ryan; M J Shaw; J D Lande; A M Pheley Journal: N Engl J Med Date: 1996-09-26 Impact factor: 91.245
Authors: F Prat; N A Malak; G Pelletier; C Buffet; J Fritsch; A D Choury; C Altman; C Liguory; J P Etienne Journal: Gastroenterology Date: 1996-03 Impact factor: 22.682