Alam, M. K., N. Begum, and S. Begum. “Relationship of Serum Ionized Calcium and Magnesium Concentration With Parasympathetic Nerve Function in Type 2 Diabetes Mellitus”. Journal of Bangladesh Society of Physiologist, vol. 11, no. 2, Dec. 2016, pp. 70-73, doi:10.3329/jbsp.v11i2.30654.