Authors: R L Salmon; S R Palmer; C D Ribeiro; P Hutchings; T J Coleman; F J Willis; T N Allsup; W N Ritchie Journal: J Epidemiol Community Health Date: 1991-12 Impact factor: 3.710
Authors: A Stevens; C Joseph; J Bruce; D Fenton; M O'Mahony; D Cunningham; B O'Connor; B Rowe Journal: Epidemiol Infect Date: 1989-12 Impact factor: 2.451