Authors: G Tudor-Williams; J Frankland; D Isaacs; R T Mayon-White; J A MacFarlane; M P Slack; E Anderson; D G Rees; E R Moxon Journal: Arch Dis Child Date: 1989-04 Impact factor: 3.791
Authors: J Eskola; H Peltola; A K Takala; H Käyhty; M Hakulinen; V Karanko; E Kela; P Rekola; P R Rönnberg; J S Samuelson Journal: N Engl J Med Date: 1987-09-17 Impact factor: 91.245