Authors: A S Gallus; J Hirsh; R J Tutle; R Trebilcock; S E O'Brien; J J Carroll; J H Minden; S M Hudecki Journal: N Engl J Med Date: 1973-03-15 Impact factor: 91.245
Authors: V V Kakkar; T Corrigan; J Spindler; D P Fossard; P T Flute; R Q Crellin; S Wessler; E T Yin Journal: Lancet Date: 1972-07-15 Impact factor: 79.321