Authors: D K Rex; R A Weddle; G A Lehman; D C Pound; K W O'Connor; R H Hawes; R S Dittus; J C Lappas; L Lumeng Journal: Gastroenterology Date: 1990-04 Impact factor: 22.682
Authors: D A Johnson; M S Gurney; R J Volpe; D M Jones; M M VanNess; S J Chobanian; J C Avalos; J L Buck; G Kooyman; E L Cattau Journal: Am J Gastroenterol Date: 1990-08 Impact factor: 10.864