Coal workers'' pneumoconiosis: a study of prevalence in
Coal workers'' pneumoconiosis: a study of prevalence in coal mines of eastern Madhya Pradesh and Orissa states of India. Parihar YS(1), Patnaik JP, Nema BK, Soo GB, Misra IB, Adhikary S. Author information: (1)South Eastern Coalfields Limited, Bilaspur, Madhya Pradesh, India.