Mahmud, S. Z., Alif, S. M., Tarafder, M. A. and Hossain, S. M. (2013) “The Correlation between Periodontal Diseases and Chronological Age among Type 2 Diabetes Mellitus Patients attending at National Healthcare Network (NHN) Mirpur Centre, Dhaka, Bangladesh”, BIRDEM Medical Journal, 3(2), pp. 74–69. doi: 10.3329/birdem.v3i2.17209.