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 Lester; N H Eriksen; H Nielsen; P B Nielsen; A Friis-Møller; B Bruun; J Scheibel; K Gaarslev; H J Kolmos Journal: Eur J Clin Microbiol Infect Dis Date: 1991-06 Impact factor: 3.267