Zaman, M.; Alam, M. J.; Quddus, S.; Hossain, A.; Sharmin, R. A.; Bhattacharjee, P.; Parveen, R.; Tasnim, H.; Yeasmin, N.; Hossain, M. I. Association Between Vitamin D Status and Peripheral Thyroid Hormone Activation: Insights from FT3 FT4 Ratio Analysis. Bangladesh J. Nuclear Med. 2026, 28, 275-281.