http://pec.lib.wvu.edu/record/P165721970Physicians' involvement with industrial productivity. Journal article reprint from: <em>The Journal of the Tennessee Medical Association, </em>v.63:no.12 (1970:Dec.). Kerr, Lorin E., 1909-Coal miners--Mortality.Industrial productivity--United States.Coal miners--Dust diseases--Prevention and control.Lungs--Dust diseases--Prevention and control.Chest--Diseases.Pneumoconiosis.Pneumoconiosis--Prevention and control.14256