Kim, Javier Flores
Nwaru, Bright I. http://orcid.org/0000-0002-2876-6089
McCleary, Nicola http://orcid.org/0000-0002-4394-703X
Stoddart, Andrew
Sheikh, Aziz
Article History
Received: 8 October 2016
Revised: 13 December 2016
Accepted: 20 December 2016
First Online: 9 February 2017
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.