Corrigendum: Microbial Community Analysis of Saliva and Biopsies in Patients With Oral Lichen Planus - Wang, Xuewei; Zhao, Zhibai; Tang, Nan; Zhao, Yuping; Xu, Juanyong; Li, Liuyang; Qian, Ling; Zhang, Junfeng; Fan, Yuan (Frontiers in Microbiology, 2020)