McKibben, Shauna http://orcid.org/0000-0003-2725-7044
De Simoni, Anna
Bush, Andy
Thomas, Mike
Griffiths, Chris
Article History
Received: 27 September 2017
Revised: 6 March 2018
Accepted: 9 March 2018
First Online: 16 April 2018
Competing interests
: C.G. is an assistant editor of npj Primary Care Respiratory Medicine and M.T. is an associate editor of <i>npj Primary Care Respiratory Medicine</i> but were involved in neither the editorial review of, nor any decision to publish or not publish this article.