Kunal Roy, Prakash Chandra Mishra, Sudhanshu Shekhar, and Farhan Usmani. “A Study of Thyroid Profile and Vitamin D Levels in Type 2 Diabetes Mellitus Patients”. International Journal of Health and Clinical Research, vol. 5, no. 1, Jan. 2022, pp. 222-4, https://ijhcr.com/index.php/ijhcr/article/view/3982.