T.NIVETHITHA, and S.VIJAYALAKSHMI. “THE EFFECT OF METFORMIN ON THYROID PROFILE IN PATIENTS WITH POLYCYSTIC OVARIAN SYNDROME AND SUBCLINICAL HYPOTHYROIDISM”. International Journal of Pharma and Bio Sciences, vol. 6, no. 2, June 2015, pp. 532-8, https://ijpbs.net/index.php/journal/article/view/4180.