Text and Data Mining valid from 2019-05-02
Received: 5 October 2018
Accepted: 5 March 2019
First Online: 2 May 2019
Ethics approval and consent to participate
: The study was conducted in accordance with the declaration of Helsinki and guidelines for good clinical practice. The regional committee of medical ethics approved the project (project number 2011/1307), and all participants provided informed, written consent.
: Not applicable.
: EMHM, EOL, EN, PSB and SL declare no conflict of interest. TMLE reports grants from Western Norway Regional Health Authority during the conduct of the study, and personal fees from Boehringer Ingelheim and AstraZeneca outside the submitted work. RN reports grants from GlaxoSmithKline during the conduct of the study, and grants from Boehringer Ingelheim, grants and personal fees from AstraZeneca, grants from Novartis, and personal fees from GlaxoSmithKline outside the submitted work.
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