Veenendaal, Mathijs
Westerik, Janine A. M.
van den Bemt, Lisette http://orcid.org/0000-0002-3771-8273
Kocks, Janwillem W. H. http://orcid.org/0000-0002-2760-0693
Bischoff, Erik W.
Schermer, Tjard R.
Funding for this research was provided by:
GlaxoSmithKline, the Netherlands
GlaxoSmithKline
Article History
Received: 13 June 2018
Accepted: 29 March 2019
First Online: 29 April 2019
Competing interests
: J.W.H.K. is an Associate Editor of <i>npj Primary Care Respiratory Medicine</i>. The other authors declare no competing interests.