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Abstract
Mesh: See more » Accidents, Traffic/prevention & controlAdolescentAdultCraniocerebral Trauma/prevention & controlHead Protective DevicesHumansProtective Devices
Year: 1977 PMID: 871628 PMCID: PMC1607228 DOI: 10.1136/bmj.1.6075.1491-a
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447