This article has been accepted for publication in BMJ Supportive & Palliative Care, 2018, following peer review, and the Version of Record can be accessed online at http://dx.doi.org/10.1136/bmjspcare-2017-001440.

© Article author(s) (or their employer(s) 2018. Reuse of this manuscript version (excluding any databases, tables, diagrams, photographs and other images or illustrative material included where a another copyright owner is identified) is permitted strictly pursuant to the terms of the Creative Commons Attribution-Non Commercial 4.0 International (CC-BY-NC 4.0). https://creativecommons.org/licenses/by-nc/4.0/
Med mindre annet er angitt, så er denne innførselen lisensiert som This article has been accepted for publication in BMJ Supportive & Palliative Care, 2018, following peer review, and the Version of Record can be accessed online at http://dx.doi.org/10.1136/bmjspcare-2017-001440. © Article author(s) (or their employer(s) 2018. Reuse of this manuscript version (excluding any databases, tables, diagrams, photographs and other images or illustrative material included where a another copyright owner is identified) is permitted strictly pursuant to the terms of the Creative Commons Attribution-Non Commercial 4.0 International (CC-BY-NC 4.0). https://creativecommons.org/licenses/by-nc/4.0/