Authors: T L Bush; E Barrett-Connor; L D Cowan; M H Criqui; R B Wallace; C M Suchindran; H A Tyroler; B M Rifkind Journal: Circulation Date: 1987-06 Impact factor: 29.690
Authors: M J Stampfer; G A Colditz; W C Willett; J E Manson; B Rosner; F E Speizer; C H Hennekens Journal: N Engl J Med Date: 1991-09-12 Impact factor: 91.245