Bridging the gap.
MacDonald
G
G
D000293:Adolescent; D000328:Adult; D001642:Bicycling / Q000293:injuries*; D002170:Canada / Q000453:epidemiology; D002648:Child; D006259:Craniocerebral Trauma / Q000453:epidemiology / Q000517:prevention & control*; D006801:Humans; D012307:Risk Factors