Daines, L. http://orcid.org/0000-0003-0564-4000
McLean, S.
Buelo, A.
Lewis, S.
Sheikh, A.
Pinnock, H.
Article History
Received: 20 December 2017
Revised: 26 April 2018
Accepted: 26 April 2018
First Online: 18 May 2018
Competing interests
: A.S. is Joint Editor-in-Chief of <i>npj: Primary Care Respiratory Medicine</i>, but was not involved in the editorial review of, nor the decision to publish, this article. The remaining authors declare no competing interests.