Flexible sigmoidoscopy plus air-contrast barium enema versus colonoscopy for evaluation of symptomatic patients without evidence of bleeding

Authors:
  • DMDavid Mark
    David Mark
  • BCBrian Clarke
    Brian Clarke
  • JLJohn C. Lappas
    John C. Lappas
  • GLGlen A. Lehman
    Glen A. Lehman

Abstract
No abstract available