Authors: A G Levy; L Widerlite; C J Schwartz; R Dolin; N R Blacklow; J D Gardner; D V Kimberg; J S Trier Journal: Gastroenterology Date: 1976-03 Impact factor: 22.682
Authors: H B Greenberg; J Valdesuso; A Z Kapikian; R M Chanock; R G Wyatt; W Szmuness; J Larrick; J Kaplan; R H Gilman; D A Sack Journal: Infect Immun Date: 1979-10 Impact factor: 3.441