Authors: P M Smythe; G G Brereton-Stiles; H J Grace; A Mafoyane; M Schonland; H M Coovadia; W E Loening; M A Parent; G H Vos Journal: Lancet Date: 1971-10-30 Impact factor: 79.321
Authors: A S Goldman; M E Haggard; J McFadden; S E Ritzmann; E W Houston; R L Bratcher; K G Weiss; E M Box; J W Szekrenyes Journal: Pediatrics Date: 1967-03 Impact factor: 7.124