Consultant Surgeon
Department of General Surgery
Northumbria Healthcare NHS Foundation Trust
UK
IJDM is an author of a reference cited in this topic.
Mr Iain J.D. McCallum would like to gratefully acknowledge Dr Seamus Kelly, a previous contributor to this topic. SK declares that he has no competing interests.
Assistant Clinical Professor of Surgery
UCLA
Chief of Colon and Rectal Surgery Chair
Center for Minimally Invasive Surgery Kaiser Permanente
Los Angeles
CA
MAA declares that he has no competing interests.
Consultant Colorectal Surgeon
Clinical Manager of General Surgery and ETC
Department of Surgery
Manchester Royal Infirmary
Manchester
UK
AJMW is an author of a reference cited in this monograph.
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