Received: 14 October 2017
Accepted: 18 June 2018
First Online: 28 June 2018
Change Date: 22 August 2018
Change Type: Correction
Change Details: The list of the CholeS management group, Collaborators and Data Validators were omitted from the Acknowledgments.
Compliance with ethical standards
: Drs. Griffiths, Hodson, Vohra, Marriott, Katbeh, Zino and Nassar have no conflicts of interest or financial ties to disclose.