Authors: W J Stewart; P J Currie; E E Salcedo; B W Lytle; C C Gill; W A Schiavone; D A Agler; D M Cosgrove Journal: Circulation Date: 1990-02 Impact factor: 29.690
Authors: A Rosenzweig; H Watkins; D S Hwang; M Miri; W McKenna; T A Traill; J G Seidman; C E Seidman Journal: N Engl J Med Date: 1991-12-19 Impact factor: 91.245