5Peterson S, Sanga A, Eklof H, et al. Classification of thyroid size by palpation and uhrasongraphy in field surves [ J ]. Lancet, 2000, 355 (9198) : 106.
6[2]Jatzko GR,Lisborg PH,Muller MG,et al,Recurrent nerve palsy after thyroid operations:principal never identification and a Litera ture review.Surgery.1994,115:139
8Nygaard B, Nygaard T, Court-Payen M, et al. Thyroid volume measured by ultrasonography and CT [J]. Acta Radiol, 2002,43(3): 269-274.
9Hermans R, Bouillon R, Laga K, et al. Estimation of thyroid gland volume by spiral computed tomography [J]. Eur Radiol,1997,7 (2): 214-216.
10Toyota K,Uchidal H, Ozasal H,et al. Preoperative airway evaluation using multi-slice three-dimenslonal computed tomography for a patient with severe tracheal stenosis[J]. Br J Anaesth,2004,93(6): 865-867.