. 2016 Mar 1;7:48. doi: 10.4103/2008-7802.177893
Copyright: © 2016 International Journal of Preventive Medicine
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.
Table 1.
Characteristics of the studies entered into the final meta-analysis
