9Frates MC, Benson CB, Charboneau JW, et al. Management of thyroid nodules detected at US: Society of Radiologist in Ultrasound consensus conference statement[J]. Radiology, 2005, 237(3):794-800.
10Lim D J, Luo S, Kim MH, et al. Interobserver agreement and intraobserver reproducibility in thyroid ultrasound elastography [J]. AJR Am J Roentgenol, 2012, 198 (4): 896-901.