title: Diagnostic and therapeutic technology assessment. Rigid and flexible sigmoidoscopies.
mesh_terms: D000574:American Medical Association; D015179:Colorectal Neoplasms / Q000175:diagnosis; D004867:Equipment Design; D005336:Fiber Optic Technology; D012449:Safety; D020694:Sigmoidoscopes; D013673:Technology Assessment, Biomedical; D014481:United States