Long-term efficacy and adverse reactions of IMRT combined with Endostar versus IMRT combined with chemotherapy for locally advanced nasopharyngeal carcinoma: a retrospective study - Chen, Wei; Wang, Fangfang; Yang, Zhendong; Zhang, Tingting; Shen, Mingjun; Wang, Rensheng; Kang, Min (Annals of Palliative Medicine, 2021)