title: Taking the pain out of cystoscopy: a comparison of rigid with flexible instruments.
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D020684:Cystoscopes; D003558:Cystoscopy / Q000009:adverse effects; D006801:Humans; D008297:Male; D008875:Middle Aged; D010146:Pain / Q000517:prevention & control