Bike helmets: a reply to replies.
Division of Population Health & Education, St George's, University of London, London, UK.
Carwyn Rhys
CR
Hooper
London School of General Practice, London, UK.
John
J
Spicer
D000063:Accidents, Traffic / Q000706:statistics & numerical data*; D001642:Bicycling / Q000293:injuries*; D006259:Craniocerebral Trauma / Q000517:prevention & control*; D006801:Humans; D011640:Public Policy / Q000331:legislation & jurisprudence*; D012955:Societies, Medical
Education