3[6]Witt RL.The significance of the magin in parotid surgery for pleomorphic adenoma[J].Laryngoscope,2002,112(12):2141-2154.
4[7]Armstsong JG,Harrison LB,Thaler HT,et al.The indications for elective treatment of the neck in cancer of the major salivary glands[J].Cancer,1992,69(3):615-619.
