Moustafa, A. F., M. S. Ammar, A. El-Hantour, and A. F. El-Kased. “Preoperative Thyroid Stimulating Hormone Level As Risk Factor for Differentiated Thyroid Cancer”. International Surgery Journal, vol. 6, no. 4, Mar. 2019, pp. 1063-7, doi:10.18203/2349-2902.isj20191252.