Authors: D Grady; S M Rubin; D B Petitti; C S Fox; D Black; B Ettinger; V L Ernster; S R Cummings Journal: Ann Intern Med Date: 1992-12-15 Impact factor: 25.391
Authors: K M Newton; A Z LaCroix; B McKnight; R H Knopp; D S Siscovick; S R Heckbert; N S Weiss Journal: Am J Epidemiol Date: 1997-02-01 Impact factor: 4.897