Pramila, K., M. Vijayalakshmi, and V. Amuthavalli. “Validity of Rapid Free T4 Testing to Distinguish Levothyroxine Non-Compliance from Malabsorption: A Case Report”. International Journal of Advances in Medicine, vol. 13, no. 4, May 2026, pp. 212-4, doi:10.18203/2349-3933.ijam20261454.