We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleInvestigating helmet promotion for cyclists: results from a randomised study with observation of behaviour, using a semi-automatic video system.AuthorsConstant A; Messiah A; Felonneau ML; Lagarde EPublicationPloS one, 2012, Vol 7, Issue 2, pe31651ISSN1932-6203Publication typearticleDOI10.1371/journal.pone.0031651