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M. A. Chaudhry, M. . Waseem, F. . Ahmad, M. Z. Ashraf, and M. A. Bhatti, “Frequency of Coronary Heart Disease: Risk Factors among Doctors of CMH Lahore Medical and Dental College, Lahore – Pakistan”, apmc, vol. 6, no. 2, pp. 156–160, Dec. 2012.