Vafaee-Najar et al. 13 14 (2006-2007). J Appl Sci 2009;9: 2445-50. [http://dx.doi.org/10.3923/ jas.2009.2445.2450] Vafaee-Najar A, Esmaeili H, Ibra- himipour H, Dehnavieh R, Nozadi MS. Motorcycle Fatal Accidents in Khorasan Razavi Province, Iran. Iran J Public Health 2010;39(2):95-101. Norris FH, Matthews BA, Riad JK. Characterological, situational, and behavioral risk factors for motor ve- hicle accidents: a prospective exam- ination. Accid Anal Prev 2000; 32:505-15. [10868753] [http://dx.doi. org/10.1016/S0001-4575(99)00068-8] 15 16 Claret PL, Castillo Jde D, Moleon JJ, Cavanillas AB, Martin MG, Var- gas RG. Age and sex differences in the risk of causing vehicle collisions in Spain, 1990 to 1999. Accid Anal Prev 2003;35:261-72. [12504147] [http://dx.doi.org/10.1016/S0001-45 75(02)00004-0] Mao Y, Zhang J, Robbins G, Clarke K, Lam M, Pickett W. Factors affect- ing the severity of motor vehicle traf- fic crashes involving young drivers in Ontario. Inj Prev 1997;3:183-9. [9338829] [http://dx.doi.org/10.1136/ ip.3.3.183] 17 18 Zhang J, Lindsay J, Clarke K, Rob- bins G, Mao Y. Factors affecting the severity of motor vehicle traffic crashes involving elderly drivers in Ontario. Accid Anal Prev 2000; 32:117-25. [10576682] [http://dx. doi.org/10.1016/S0001- 4575(99)00039-1] Campbell B, Campbell F. Injury reduction and belt use associated with occupant restraint laws 1988. In: Graham, J.D., Editor. Preventing Automobile Injury: New Findings From Evaluation Research, Auburn House, Dover, MA, U.S.A., 1988: p. 24-50. 536 WWW.ircmj.com Vol 13 August 2011