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11. The Pneumoconiosis : methods of measuring progression.

12. On the factors influencing consistency in the radiologic diagnosis of pneumoconiosis.

13. The Course of pneumoconiosis in coal miners : should a miner with the condition continue to work in dust?

14. Comparison of dust exposures in Pennsylvania anthracite and bituminous coal mines.

15. Environmental dust study of anthracite coal mines of Eastern Pennsylvania.

16. Patterns of physiological impairment in coal workers' pneumoconiosis.

17. Life expectancy of Pennsylvania coal miners compensated for disability : as affected by pneumoconiosis and ventilatory impairment.

18. Serum trypsin inhibitor concentrations in coal miners with respiratory symptoms.

19. Pulmonary hemodynamics in symptomatic coal miners.

20. Physicians' involvement with industrial productivity.