Das, PK, F Rahman, PK Shetty, and DP Shetty. 2010. “Pulmonary Embolism: An Observational Study at Narayana Hrudayalaya Institute of Cardiac Sciences, Bangalore, India”. Mymensingh Medical Journal 19 (3):399-404. https://banglajol.info/index.php/MMJ/article/view/6127.