. 2015 Jun;20(6):585–589. doi: 10.4103/1735-1995.165964
Copyright: © 2015 Journal of Research in Medical Sciences
This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.
Figure 1.
Patients study flow diagram