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: A N Nicolaides; P A Dupont; S Desai; J D Lewis; J N Douglas; H Dodsworth; G Fourides; R J Luck; C W Jamieson Journal: Lancet Date: 1972-10-28 Impact factor: 79.321