title: Measurement methodology for the effects of accident prevention programs.
authors.affiliation: Kuopio Regional Institute of Occupational Health, Finland.
authors.forename: K
authors.initials: K
authors.lastname: Ojanen
authors.forename: A
authors.initials: A
authors.lastname: Seppälä
authors.forename: M
authors.initials: M
authors.lastname: Aaltonen
mesh_terms: D000062:Accidents, Occupational / Q000517:prevention & control*; D001521:Behavior Therapy; D005069:Evaluation Studies as Topic; D009934:Organization and Administration; D012449:Safety