Authors: J F Dowsett; A A Polydorou; D Vaira; L M D'Anna; M Ashraf; J Croker; P R Salmon; R C Russell; A R Hatfield Journal: Gut Date: 1990-08 Impact factor: 23.059
Authors: S-J Tang; G B Haber; P Kortan; S Zanati; M Cirocco; M Ennis; A Elfant; D Scheider; H Ter; J Dorais Journal: Endoscopy Date: 2005-01 Impact factor: 10.093