The importance of bicycle helmets.
Barkow
K M
KM
Webster Clinic, Green Bay.
D001642:Bicycling / Q000293:injuries*; D002648:Child; D006259:Craniocerebral Trauma / Q000517:prevention & control*; D006260:Head Protective Devices; D006266:Health Education; D006801:Humans; D014922:Wisconsin