1.

纳入文献的基本特征及方法学质量

Assessment of quality and score of the 8 studies included

Reference	Study style	Number of patients (E/C)	Outcomes	Quality score
E: Endoscopic; C: Conventional; Study style: R: Retrospective; RCT: Randomized controlled trail; Outcomes: 1=Tumor diameter; 2=Operation time、3=Incision length、4=Operative bleeding volume、5=Postoperative drainage volume、6= Subjective satisfaction with incision scar、7=Temporary facial paresis、8=Salivary fistula、9=Frey's syndrome 10=Recurrence.
Huang, 2009	RCT	18/20	1, 2, 4, 7, 8, 9, 10	RCT
Chen, 2014	R	30/30	1, 2, 3, 4, 6, 7, 8, 9, 10	6 stars
Yan, 2015	RCT	29/29	1, 2, 3, 4, 6, 7, 8, 9, 10	RCT
谢芳兰, 2020	R	46/46	2, 3, 4, 5, 7, 8	6 stars
孙宁宁, 2012	RCT	18/18	2, 5, 8, 9, 10	RCT
李群星, 2016	RCT	27/33	1, 2, 3, 4, 5, 6, 7, 8, 9, 10	RCT
陆珣珣, 2018	R	55/55	5	4 stars
李森, 2017	R	41/37	2, 3, 4, 5, 7, 8, 9, 10	6 stars