http://pec.lib.wvu.edu/record/P157801949A digest of the medical survey of the bituminous coal industry, made in 1946-1947 by the United States government.Pamphlet. "The report on the medical survey of the bituminous coal industry was conducted in 1946-1947 by Rear Admiral Joel T. Boone, Medical Corps, U.S. Navy..." "... the UMWA Welfare and Retirement Fund has made a digest of [Boone's] report..." United Mine Workers of America. Welfare and Retirement Fund.United Mine Workers of America. Welfare and Retirement Fund.Miners--Medical care--United States.14256