Authors: I M Modlin; J R Farndon; A Shepherd; I D Johnston; T L Kennedy; D A Montgomery; R B Welbourn Journal: Br J Surg Date: 1979-07 Impact factor: 6.939
Authors: T W Valk; M S Frager; M D Gross; J C Sisson; D M Wieland; D P Swanson; T J Mangner; W H Beierwaltes Journal: Ann Intern Med Date: 1981-06 Impact factor: 25.391