"Community chest x-rays for pneumoconiosis prevention. "; "Tanaka, Shiro.", "Lieben, Jan."; "Coal miners--Diseases--Prevention and control.", "Lungs--Dust diseases--Prevention and control.", "Pneumoconiosis--Prevention and control.", "Chest radiography."; "Lieben, Jan.", "Tanaka, Shiro."; "1966"; "Journal article reprint from: Archives of Environmental Health, v.12 (1966:Jan.). "; ""; "P16561"; "pec"; "Coal miners--Diseases--Prevention and control.", "Lungs--Dust diseases--Prevention and control.", "Chest radiography.", "Pneumoconiosis--Prevention and control."; "14256"; .