D Callahan. Show Affiliations »
Abstract
Mesh: See more » Accidents, TrafficBicyclingCraniocerebral Trauma/prevention & controlHead Protective DevicesHumansLegislation as TopicProtective DevicesSportsUnited States
Year: 1989 PMID: 2716787 DOI: 10.1056/NEJM198905253202110
Source DB: PubMed Journal: N Engl J Med ISSN: 0028-4793 Impact factor: 91.245