Received: 23 November 2017
Accepted: 29 April 2018
First Online: 8 May 2018
Ethics approval and consent to participate
: Not applicable.
: M.B. is the inventor of ClearScope and a shareholder in Clearwater Clinical, a company that manufactures a smartphone adapter for the purposes of endoscopy. No corporate funding was used for this project. The other authors have no conflicts of interest to declare.
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