Butt, Mah Gul Mumtaz, Muhammad Nafees, and Hafsa Aquil. 2017. “DIAGNOSTIC ACCURACY OF COLOR FLOW DOPPLER IN THYROID TUMORS: Diagnostic Accuracy in Thyroid Tumors”. Pakistan Armed Forces Medical Journal 67 (2): 216-21. https://www.pafmj.org/PAFMJ/article/view/1682.