Authors: M Rapicetta; K Hailu; A Ponzetto; C Hele; G Morace; D Bekura; L Bisanti; S Conti; P Pasquini; M Rizzetto Journal: Eur J Epidemiol Date: 1988-06 Impact factor: 8.082
Authors: A G Shattock; F M Irwin; B M Morgan; I B Hillary; M G Kelly; J F Fielding; D A Kelly; D G Weir Journal: Br Med J (Clin Res Ed) Date: 1985-05-11