. 2011 Jul-Sep;6(3):115–119. doi: 10.4103/1817-1737.82438
Copyright: © Annals of Thoracic Medicine
This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Table 1.
Demographic characteristics of the study population
