方法采用现况调查和回顾性队列研究方法，对2 876名队列成员进行皮肤科检查和现场职业卫生学及个人职业史的调查。
Methods Retrospective epidemiological cohort study and field survey were conducted for dermatological examination, occupational hygiene and occupational exposure history for 2 876 workers.
方法采用职业卫生学调查、工作场所职业病危害因素现场监测和职业健康检查进行综合评价。
Methods the comprehensive evaluation was done by using on-site occupational hazard survey, detection of occupational hazards and occupational health check in the workplace.
方法采用职业卫生学调查、工作场所职业病危害因素现场监测和职业健康检查进行综合评价。
Methods Occupational health scene investigation, occupational health testing, occupational health screening and check-list were adopted for qualitative and quantitative assessments.
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