Authors: P Saikku; M Leinonen; K Mattila; M R Ekman; M S Nieminen; P H Mäkelä; J K Huttunen; V Valtonen Journal: Lancet Date: 1988-10-29 Impact factor: 79.321
Authors: M A Mendall; D Carrington; D Strachan; P Patel; N Molineaux; J Levi; T Toosey; A J Camm; T C Northfield Journal: J Infect Date: 1995-03 Impact factor: 6.072