Mahmud, S. Z.; Alif, S. M.; Tarafder, M. A.; Hossain, S. M. 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 Med J 2013, 3, 74-69.