Authors: N Hirschhorn; J L Kinzie; D B Sachar; R S Northrup; J O Taylor; S Z Ahmad; R A Phillips Journal: N Engl J Med Date: 1968-07-25 Impact factor: 91.245
Authors: N F Pierce; J G Banwell; D M Rupak; R C Mitra; G J Caranasos; R I Keimowitz; A Mondal; P M Manji Journal: Gastroenterology Date: 1968-09 Impact factor: 22.682