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
Authors: A W van de Giessen; J B Dufrenne; W S Ritmeester; P A Berkers; W J van Leeuwen; S H Notermans Journal: Epidemiol Infect Date: 1992-12 Impact factor: 2.451