1) Lewis AG, Tong T, Maghami E. Diagnosis and management of malignant salivary gland tumors of the parotid gland. Otolaryngol Clin North Am. 2016;49:343-380.
3) Jouzdani E, Yachouh J, Costes V, Faillie JL, Cartier C, Poizat F, et al. Prognostic value of a three-grade classification in primary epithelial parotid carcinoma:Result of a histological review from a 20-year experience of total parotidectomy with neck dissection in a single institution. Eur J Cancer. 2010;46:323-331.
4) Wang YL, Li DS, Gan HL, Lu ZW, Li H, Zhu GP, et al. Predictive index for lymph node management of major salivary gland cancer. Laryngoscope. 2012;122:1497-1506.
6) Pfister DG, Spencer S, Adelstein D, Adkins D, Anzai Y, Brizel DM, et al. Head and neck cancers, version 2.2020, NCCN clinical practice guidelines in oncology. J Natl Compr Canc Netw. 2020;18:873-898.
7) Vinh-Hung V, Verkooijen HM, Fioretta G, Neyroud-Caspar I, Rapiti E, Vlastos G, et al. Lymph node ratio as an alternative to pN staging in node-positive breast cancer. J Clin Oncol. 2009;27:1062-1068.
8) Wang W, Xu DZ, Li YF, Guan YX, Sun XW, Chen YB, et al. Tumor-ratio-metastasis staging system as an alternative to the 7th edition UICC TNM system in gastric cancer after D2 resection―results of a single-institution study of 1343 Chinese patients. Ann Oncol. 2011;22:2049-2056.
9) Rosenberg R, Engel J, Bruns C, Heitland W, Hermes N, Jauch KW, et al. The prognostic value of lymph node ratio in a population-based collective of colorectal cancer patients. Ann Surg. 2010;251:1070-1078.
10) Lim CM, Gilbert MR, Johnson JT, Kim S. Clinical significance of intraparotid lymph node metastasis in primary parotid cancer. Head Neck. 2014;36:1634-1647.
11) Ettl T, Gosau M, Brockhoff G, Schwarz-Furlan S, Agaimy A, Reichert TE, et al. Predictors of cervical lymph node metastasis in salivary gland cancer. Head Neck. 2014;36:517-523.
14) Roh JL, Choi SH, Lee SW, Cho KJ, Nam SY, Kim SY. Carcinomas arising in the submandibular gland:High propensity for systemic failure. J Surg Oncol. 2008;97:533-537.
15) Yamada K, Honda K, Tamaki H, Tanaka S, Shinohara S, Takebayashi S, et al. Survival in patients with submandibular gland carcinoma - Results of a multi-institutional retrospective study. Auris Nasus Larynx. 2018;45:1066-1072.
16) Qian K, Sun W, Guo K, Zheng X, Sun T, Chen L, et al. The number and ratio of positive lymph nodes are independent prognostic factors for patients with major salivary gland cancer:Results from the surveillance, epidemiology, and end results dataset. Eur J Surg Oncol. 2019;45:1025-1032.
17) Park YM, Yoon SO, Koh YW, Kim SH, Lim JY, Choi EC. Clinical-pathological prognostic factors and treatment failure patterns in T1-2 high-grade parotid gland cancer. Oral Oncol. 2020;110:104884.
18) Park YM, AlHashim MA, Yoon SO, Koh YW, Kim SH, Lim JY, et al. Prognostic significance of lymphovascular invasion in patients with salivary duct cell carcinoma of the head and neck. Int J Oral Maxillofac Surg. 2020;49:693-699.