Same-day 2-L PEG-citrate-simethicone plus bisacodyl vs split 4-L PEG: Bowel cleansing for late-morning colonoscopy.

Duodenal levodopa infusion for advanced Parkinson’s disease: 12-month treatment outcome.

Lack of colonic neoplastic lesions in patients under 50 yr of age with hematochezia: a multicenter prospective study.