Why I have difficulty being enthusiastic about recommending that children wear helmets on bicycles.
D000059:Accidents; D001265:Athletic Injuries / Q000517:prevention & control; D001642:Bicycling; D002648:Child; D006259:Craniocerebral Trauma / Q000517:prevention & control*; D006260:Head Protective Devices; D006801:Humans; D011482:Protective Devices; D013177:Sports