Authors: R C Smith; D S Greenbaum; J B Vancouver; R C Henry; M A Reinhart; R B Greenbaum; H A Dean; J E Mayle Journal: Gastroenterology Date: 1990-02 Impact factor: 22.682
Authors: W E Whitehead; M D Crowell; L Bosmajian; A Zonderman; P T Costa; C Benjamin; J C Robinson; B R Heller; M M Schuster Journal: Gastroenterology Date: 1990-02 Impact factor: 22.682