Singh, GurjitKohli, ArvindSingh, Shyam2016-01-282016-01-282003-10Singh Gurjit, Kohli Arvind, Singh Shyam. Evolution of Surgery for Coronary Artery Disease. JK Science Journal of Medical Education and Research. 2003 Oct-Dec;5(4): 179-181http://imsear.searo.who.int/handle/123456789/171070enArticle