Johnson et al.(1993)showed that coexposure to UV-A between 300-400 nm enhanced the toxicity of nitrotoluenes to Photobac......

[目的]了解噪声、粉尘接触对职业人群血压的影响。[方法]采用整群抽样方法,选取广东省某钢琴制造厂765名工人为研究对象。将研究对......