Hats off (or not?) to helmet legislation.
Chipman
Mary L
ML
Department of Public Health Sciences, University of Toronto, Ont. mary.chipman@utoronto.ca
D000293:Adolescent; D000328:Adult; D001521:Behavior Therapy; D001642:Bicycling; D002648:Child; D006259:Craniocerebral Trauma / Q000517:prevention & control*; D004493:Education; D019983:Guideline Adherence; D006260:Head Protective Devices; D006801:Humans; D009674:Nova Scotia; D011640:Public Policy