Authors: P H Broomfield; R Chopra; R C Sheinbaum; G G Bonorris; A Silverman; L J Schoenfield; J W Marks Journal: N Engl J Med Date: 1988-12-15 Impact factor: 91.245
Authors: D Burnett; A Ertan; R Jones; J P O'Leary; R Mackie; J E Robinson; G Salen; L Stahlgren; D H Van Thiel; L Vassy Journal: Dig Dis Sci Date: 1989-07 Impact factor: 3.199