Noise induced hearing loss among grass trimming workers
Introduction: Grass trimming workers work every day in a noisy environment as they carry the grass trimming machine on their back, such daily exposure for many years may contribute to noise induced hearing loss. Objective: To assess the hearing status of the grass trimming workers in KB and the near...
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| 格式: | Thesis |
| 语言: | 英语 |
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2011
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| 在线阅读: | http://eprints.usm.my/37922/ |