Reljic, T
Kumar, A
Djulbegovic, B
Kharfan-Dabaja, M A
Article History
Received: 22 January 2015
Revised: 25 February 2015
Accepted: 26 February 2015
First Online: 13 April 2015
Change Date: 5 August 2015
Change Type: Update
Change Details: This paper was modified 12 months after initial publication to switch to Creative Commons licence terms, as noted at publication
Competing interests
: The authors declare no conflict interest.