Authors: H E Kay; P J Knapton; J P O'Sullivan; D G Wells; R F Harris; E M Innes; J Stuart; F C Schwartz; E N Thompson Journal: Arch Dis Child Date: 1972-06 Impact factor: 3.791
Authors: G P Tauro; D M Danks; P B Rowe; M B Van der Weyden; M A Schwarz; V L Collins; B W Neal Journal: N Engl J Med Date: 1976-02-26 Impact factor: 91.245