Authors: H H Balfour; J M Kelly; C S Suarez; R C Heussner; J A Englund; D D Crane; P V McGuirt; A F Clemmer; D M Aeppli Journal: J Pediatr Date: 1990-04 Impact factor: 4.406
Authors: L M Dunkle; A M Arvin; R J Whitley; H A Rotbart; H M Feder; S Feldman; A A Gershon; M L Levy; G F Hayden; P V McGuirt Journal: N Engl J Med Date: 1991-11-28 Impact factor: 91.245