title: Improper use of methodological principles in clinical epidemiology.
authors.forename: D A
authors.initials: DA
authors.lastname: Legemate
mesh_terms: D001014:Aortic Aneurysm / Q000601:surgery*; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D008297:Male; D014656:Vascular Surgical Procedures