3Stepnewski M, Kolarzyk E, Pietrzycka A, et al. Antioxidant enzymes and pulmonary function in steel mill welders. Int J Occup Med Environ Health, 2003 ; 16 : 41 - 47.
4Golshan M, Faghihi M, Marardi MM. Indoor women jobs and pulmonary risks in rural areas of Isfahan, Iran, 2000. Respir Med, 2002 ; 96 : 382 -388.
5Golshan M, Barahimi Hnasirian K. Prevalence of chronic bronchitis and chronic respiratory symptoms in adults over the age of 35 years in Isfahan,lran in 1998. Respirology.2001,6:231 - 235.
