Received: 19 December 2019
Revised: 11 March 2020
Accepted: 27 March 2020
First Online: 23 April 2020
Compliance with ethical standards
: CWlR is supported by grants from Science Foundation Ireland (ref. 12/YI/B2480), Health Research Board (USIRL-2016–2), and the Irish Research Council during the conduct of the study. Furthermore, CWlR reported being on the advisory boards for Novo Nordisk and GI Dynamics, receiving a research grant from AnaBio, receiving honoraria for lectures and advisory work from Eli Lily, Johnson and Johnson, Sanofi Aventis, Astra Zeneca, Janssen, Bristol-Myers Squibb, and Boehringer-Ingelheim, and reported shares in Keyron. The other authors have declared that no conflict of interest exists.