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Williams AF, Tefft BC, Grabowski JG.Williams AF, et al.J Safety Res. 2012 Jul;43(3):195-203. doi: 10.1016/j.jsr.2012.07.004. Epub 2012 Aug 8.J Safety Res. 2012.PMID: 22974685Review.
Tefft BC, Williams AF, Grabowski JG.Tefft BC, et al. Among authors: williams af.Traffic Inj Prev. 2013;14(3):283-92. doi: 10.1080/15389588.2012.708887.Traffic Inj Prev. 2013.PMID: 23441947
Williams AF, Tefft BC.Williams AF, et al.J Safety Res. 2014 Feb;48:37-42. doi: 10.1016/j.jsr.2013.11.001. Epub 2013 Dec 7.J Safety Res. 2014.PMID: 24529089
Tefft BC, Williams AF, Grabowski JG.Tefft BC, et al. Among authors: williams af.Inj Epidemiol. 2014 Dec;1(1):4. doi: 10.1186/2197-1714-1-4. Epub 2014 Mar 20.Inj Epidemiol. 2014.PMID: 27747671Free PMC article.
Williams AF, Nelson LA, Leaf WA.Williams AF, et al.Accid Anal Prev. 2002 Nov;34(6):835-42. doi: 10.1016/s0001-4575(01)00090-2.Accid Anal Prev. 2002.PMID: 12371788
Williams AF, McCartt AT, Sims LB.Williams AF, et al.J Safety Res. 2016 Feb;56:9-15. doi: 10.1016/j.jsr.2015.11.006. Epub 2015 Dec 2.J Safety Res. 2016.PMID: 26875159