human 77 Humans 75 Article 60 female 56 male 54 Head and Neck Neoplasms 51 head and neck tumor 51 adult 46 head and neck cancer 40 Female 39 Head and neck cancer 39 aged 39 Male 37 major clinical study 37 middle aged 37 priority journal 37 Middle Aged 34 controlled study 32 Aged 26 pathology 22 cancer staging 21 antineoplastic agent 18 procedures 18 cancer patient 17 follow up 17 Adult 16 cancer survival 16 cancer radiotherapy 15 overall survival 15 Squamous Cell Carcinoma of Head and Neck 14