7Mccallum RI. The woke of an occupational hygienen servicce in environmental control. Ann Occup Hyg, 1963,6:55.
8Potkonjak V, Pavlovich M. Antimoniosis: a particular form of pneumoconiosis. Ⅰ.Etiology, clinical an X-ray findings. Int Arch Occup Environ Health, 1983,51:199.
10Cooper DA,Pendergrass EP, Vorwald AJ, et al. Pneumoconiosis among workers in an antimony industry. Am J Roentgenol Radium Thur Nucl Med, 1968,103:496.
