Authors: A S Basile; R D Hughes; P M Harrison; Y Murata; L Pannell; E A Jones; R Williams; P Skolnick Journal: N Engl J Med Date: 1991-08-15 Impact factor: 91.245
Authors: P Botarelli; M R Brunetto; M A Minutello; P Calvo; D Unutmaz; A J Weiner; Q L Choo; J R Shuster; G Kuo; F Bonino Journal: Gastroenterology Date: 1993-02 Impact factor: 22.682
Authors: T L Wright; D Mamish; C Combs; M Kim; E Donegan; L Ferrell; J Lake; J Roberts; N L Ascher Journal: Lancet Date: 1992-04-18 Impact factor: 79.321