Singh, S. K., R. Singh, S. K. Singh, M. A. Iquebal, S. Jaiswal, and P. K. Rai. “Aetiological Sub-Classification of Thyrotoxicosis and Relevance of TT3/TT4 Ratio in Sub-Classification of Patients With Thyrotoxicosis: An Indian Cross-Sectional Study”. International Journal of Advances in Medicine, vol. 10, no. 12, Nov. 2023, pp. 830-5, doi:10.18203/2349-3933.ijam20233566.