Martins, Sonia Maria
Salibe-Filho, William
Tonioli, Luís Paulo
Pfingesten, Luís Eduardo
Braz, Patrícia Dias
McDonnell, Juliet
Williams, Siân
do Carmo, Débora
de Sousa, Jaime Correia
Pinnock, Hilary
Stelmach, Rafael
Article History
Received: 21 September 2015
Revised: 10 June 2016
Accepted: 17 June 2016
First Online: 18 August 2016
Competing interests
: J.C.deS and H.P. are Associate Editors of <i>npj Primary Care Respiratory Medicine</i>, but were not involved in the editorial review of, nor the decision to publish this article. The other authors declare no conflict of interest.