Bell, DDBellDeighan, MMDeighanGillen, PPGillenRooke, LLRookeSmall, KKSmall2019-04-162019-04-162018-09-01Journal of the Royal College of Physicians of Edinburgh, 2018, 48 (3), pp.195-1971478-2715http://hdl.handle.net/10044/1/69071© 2019 The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution-NonComercial CC-BY-NC licence that lets others remix, tweak, and build upon your work non-commercially, and although their new works must also acknowledge you and be non-commercial, they don’t have to license their derivative works on the same terms: https://creativecommons.org/licenses/by-nc/4.0General & Internal MedicineJournal Articlehttps://www.dx.doi.org/10.4997/jrcpe.2018.301n/a2042-8189