S. Alam, S. B. S. Naqvi, and M. Ahmed, “DRUG UTILIZATION AND ECONOMIC IMPACT OF ANTICOAGULANTS IN UNSTABLE ANGINA/ NON- ST ELEVATION MYOCARDIAL INFARCTION IN KARACHI”, Int J Pharm Pharm Sci, vol. 7, no. 3, pp. 183–185, Mar. 2015.