Choudhury, MBK, et al. “Comparison of Serum Magnesium and Potassium in Acute Myocardial Infarction and Chronic Ischemic Heart Disease”. Journal of Dhaka National Medical College & Hospital, vol. 17, no. 1, Oct. 2012, pp. 33-36, doi:10.3329/jdnmch.v17i1.12190.