NCT04814069 2021-03-24A Multicenter Phase II Trial of Post-operative Concurrent Chemoradiotherapy Using Weekly Cisplatin With Tislelizumab for Patients With High-risk Head and Neck Squamous Cell Carcinoma:The POTENTIAL StudyShanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong UniversityPhase 2 Unknown38 enrolled