. . . . . "Waste and abuse in Medicare payments for medical equipment and supplies hearings before the Committee on the Budget, United States Senate, One Hundred Second Congress, first session, Washington, DC, May 13, 1991 ; Nashville, TN, June 17, 1991 ; Washington, DC, July 25, 1991 ; Bismarck, ND, September 23, 1991 ; Washington, DC, November 21, 1991"@en . . . . . . . "Waste and abuse in Medicare payments for medical equipment and supplies : hearings before the Committee on the Budget, United States Senate, One Hundred Second Congress, first session, Washington, DC, May 13, 1991 ; Nashville, TN, June 17, 1991 ; Washington, DC, July 25, 1991 ; Bismarck, ND, September 23, 1991 ; Washington, DC, November 21, 1991"@en . . . . . .