Authors: J D Meyers; E C Reed; D H Shepp; M Thornquist; P S Dandliker; C A Vicary; N Flournoy; L E Kirk; J H Kersey; E D Thomas Journal: N Engl J Med Date: 1988-01-14 Impact factor: 91.245
Authors: S A Bozzette; R A Larsen; J Chiu; M A Leal; J Jacobsen; P Rothman; P Robinson; G Gilbert; J A McCutchan; J Tilles Journal: N Engl J Med Date: 1991-02-28 Impact factor: 91.245