Authors: R Rosenhek; T Binder; G Porenta; I Lang; G Christ; M Schemper; G Maurer; H Baumgartner Journal: N Engl J Med Date: 2000-08-31 Impact factor: 91.245
Authors: R A Nishimura; D R Pieroni; F Z Bierman; S D Colan; S Kaufman; S P Sanders; J B Seward; A J Tajik; J W Wiggins; K G Zahka Journal: Circulation Date: 1993-02 Impact factor: 29.690