[Effect of ulinastatin on the expression of heat shock protein 70 and NF-kappaB in lung tissue in rats with paraquat poisoned]. - Zhou CY; Zhang ZJ; Luo YJ; Xiao SP; Lin SR (Zhonghua lao dong wei sheng zhi ye bing za zhi = Zhonghua laodong weisheng zhiyebing zazhi = Chinese journal of industrial hygiene and occupational diseases, 2011)