Authors: R Parkman; J Rappeport; R Geha; J Belli; R Cassady; R Levey; D G Nathan; F S Rosen Journal: N Engl J Med Date: 1978-04-27 Impact factor: 91.245
Authors: G S Perry; B D Spector; L M Schuman; J S Mandel; V E Anderson; R B McHugh; M R Hanson; S M Fahlstrom; W Krivit; J H Kersey Journal: J Pediatr Date: 1980-07 Impact factor: 4.406