Byambasuren, Oyungerel http://orcid.org/0000-0002-8641-1286
Sanders, Sharon
Beller, Elaine
Glasziou, Paul
Article History
Received: 27 June 2017
Revised: 6 February 2018
Accepted: 14 February 2018
First Online: 9 May 2018
Competing interests
: The authors declare no competing financial interests.