Lira-Junior, Ronaldo http://orcid.org/0000-0003-0297-5138
Åkerman, Sigvard
Gustafsson, Anders
Klinge, Björn http://orcid.org/0000-0003-2100-2446
Boström, Elisabeth A. http://orcid.org/0000-0003-1788-7501
Article History
Received: 6 March 2017
Accepted: 3 July 2017
First Online: 4 August 2017
Competing Interests
: The authors declare that they have no competing interests.