Restoration of health benefits coverage when survivor annuity is restored : hearings before the Subcommittee on Retirement and Employee Benefits of the Committee on Post Office and Civil Service, House of Representatives, Ninety-fourth Congress, first session on H.R. 10622, a bill to amend Title 5, United States Code, to provide for the restoration of health benefits coverage in certain cases of restored survivor annuity, December 2 and 4, 1975