G Hadfield. Show Affiliations »
Abstract
Mesh: See more » Accidents, Traffic/prevention & controlHead Protective DevicesHumansProtective Devices
Year: 1977 PMID: 871749 PMCID: PMC1631317 DOI: 10.1136/bmj.2.6078.43
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447