Institution: | (1) Department of Upper Gastrointestinal and Minimally Invasive Surgery, Hull Royal Infirmary, Anlaby Road, Kingston Upon Hull, East Yorkshire, England HU3 2JZ, GB;(2) Department of Upper Gastrointestinal and Minimally Invasive Surgery, Stepping Hill Hospital, Poplar Grove, Stockport, Cheshire, England SK2 7JE, GB |