Clinical Research Interests: His clinical interests cover the range of inflammatory bowel disease: Crohn's disease, ulcerative colitis, diverticular disease, colon and rectal cancer, benign anorectal disease: anal fistula, hemorrhoids, obstetrical injuries, pelvic floor disorders, colonic dysmotility, with special interest in minimal invasive colon and rectal procedures, and transanal endoscopy microsurgery for rectal tumors.