. 2012 Aug 31;1:e9. doi: 10.1017/jns.2012.10
Copyright © The Author(s) 2012
The online version of this article is published within an Open Access environment subject to the conditions of the Creative Commons Attribution-NonCommercial-ShareAlike licence <http://creativecommons.org/licenses/by-nc-sa/2.5/>. The written permission of Cambridge University Press must be obtained for commercial re-use.
Fig. 1.
Flow diagram of the study design protocol.