Polypectomy Training – Polypectomy in Detail (Brian Saunders, Christopher Williams) (2001)

Colonoscopy – Equipment and Accessories (CB Williams, JD Waye, Y Sakai) (2001)

Colonoscopy – Therapy – Part 2 (CB Williams, JD Waye, Y Sakai) (2001)

Colonoscopy – Therapy – Part 1 (CB Williams, JD Waye, Y Sakai) (2001)

Colonoscopy – Library – Part 3 (CB Williams, JD Waye, Y Sakai) (2001)

Colonoscopy – Library – Part 2 (CB Williams, JD Waye, Y Sakai) (2001)

Colonoscopy – Library – Part 1 (CB Williams, JD Waye, Y Sakai) (2001)

Colonoscopy – Insertion, Steering and Examination (CB Williams, JD Waye, Y Sakai) (2001)

Colonoscopy – The History of Endoscopy (CB Williams, JD Waye, Y Sakai) (2001)

Colonoscopy – Experts in Action – Part 2 (CB Williams, JD Waye, Y Sakai) (2001)

Colonoscopy – Experts in Action – Part 1 (CB Williams, JD Waye, Y Sakai) (2001)

Olympus ScopeGuide 3D Imager (Christopher Williams) (2008)

Polypectomy Training – Polypectomy and Electrosurgery Techniques (Brian Saunders, Christopher Williams) (2000)