5NELSON D I, NELSON R Y, CONCHA - BARRIENTOS M, etal. The global burden of occupational noise - induced hearing loss[J]. Am J Ind Med, 2005, 48 (6) : 446 -458.
6HONG O, KERR M J, DHAR S, eta]. Understanding and preventing noise - induced hearing loss[J]. Disease - a - Month. 2013 (59): 110-118.
7MASTERSON E A , SANGWOO T , WALL D K , et al . Prevalence of hearing loss in the United States by industry [ J ]. AM J Ind Med, 2013, 56 (5) : 670 -681.
8National Institute on Fness and Other Communication Disorders. Strategic plan 2006---2008 [EB/OL]. http: //www. nidcd, nih. gov/StatieResources/about/plans/strategic/strategic06 - 08. pdf.
9OLUSANYA B O, BAMIGBOYE B A, SOMEFUN AO. Permanent hearing loss among professional spice grinders in an urban communityin southwest Nigeria [ J ]. Journal of Urban Health, 2011, 89 ( 1 ) : 185 - 195.
10THORNE P, WELCH D, GRYNEVYCH A, et al. Noise induced hearing loss: epidemiology and noise exposure [ R ]. Research program report to ACC and department of labour, Auckland: Univer sity of Auckland, 2011 : 5.