Kayastha, Prakash, Sharma Paudel, and Ram Kumar Ghimire. “Ultrasound Measurement of Thyroid Isthmus Thickness in Clinically Euthyroid Subjects”. Nepalese Journal of Radiology 8, no. 2 (December 31, 2018): 26–29. Accessed April 19, 2024. https://www.nepjol.info/index.php/NJR/article/view/22979.