9MACKENZIE S G, PLESS I B. CHIRPP: Canada' s principal injury surveillance program . Canadian Hospitals Injury Reporting and Prevention Program [ J ]. Inj Prey, 1999,5 ( 3 ) :208-213.
10SUN Y H, YU T S I, WONG Z W, et al. Unintentional injuries at school in China: Patterns and risk factors [ J ]. Accid Anal Prey, 2006,38:208-214.
