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House Hearing, 92nd Congress - Black lung benefits: hearing before the General Subcommittee on Labor of the Committee on Education and Labor, House of Representatives, Ninety-second Congress, first session H.R. 18, H.R. 42, H.R. 43, and H.R. 5702 bills to amend Title IV of the Federal Coal Mine Health and Safety Act of 1969, Hearing held in Washington D.C., May 10, 1971.