Chen, Li Dosimetric Effects of Head and Neck Immobilization Devices on Multi-field Intensity Modulated Radiation Therapy for Nasopharyngeal Carcinoma. [electronic resource] - Journal of Cancer 2018 - 2443-2450 p. digital Publication Type: Journal Article ISSN: 1837-9664 Standard No.: 10.7150/jca.24887 doi