AJCC	American Joint Committee on Cancer
BMI	Body Mass Index
CI	Confidence Interval
CTCAE	Common Terminology Criteria for Adverse Events
EBRT	External Beam Radiotherapy
Gy	Gray
Hb	Hemoglobin
HNSCC	Head and Neck Squamous Cell Carcinoma
IMRT	Intensity-Modulated Radiotherapy
OS	Overall Survival
PFS	Progression-Free Survival
RCT	Radiochemotherapy (combined radiotherapy and chemotherapy)
RTOG	Radiation Therapy Oncology Group
SD	Standard Deviation
SPSS	Statistical Package for the Social Sciences
TNM	Tumor, Node, Metastasis classification
WHO	World Health Organization