Authors: P A Pizzo; K Butler; F Balis; E Brouwers; M Hawkins; J Eddy; M Einloth; J Falloon; R Husson; P Jarosinski Journal: J Pediatr Date: 1990-11 Impact factor: 4.406
Authors: G B Scott; C Hutto; R W Makuch; M T Mastrucci; T O'Connor; C D Mitchell; E J Trapido; W P Parks Journal: N Engl J Med Date: 1989-12-28 Impact factor: 91.245