Feasibility study of colonoscopy as the primary screening
       investigation in relatives of patients with colorectal cancer.

Avoiding inappropriate surgery for secondary rectal cancer.

Controlled intraoperative water testing of left-sided colorectal
       anastomoses: are ileostomies avoidable?

Surgical management of polypoid lesions of the gallbladder.

Controlled trial of the introduction of a robotic camera assistant
       (EndoAssist) for laparoscopic cholecystectomy.

The EndoAssist™ robotic camera holder as an aid to the
       introduction of laparoscopic colorectal surgery.