human 122 Humans 117 Article 91 female 82 male 80 Head and Neck Neoplasms 79 head and neck tumor 77 adult 67 priority journal 58 major clinical study 55 aged 53 controlled study 53 Female 52 middle aged 51 Male 49 Middle Aged 43 Squamous Cell Carcinoma of Head and Neck 41 head and neck cancer 40 Head and neck cancer 39 pathology 38 cancer staging 36 Aged 34 follow up 27 genetics 27 retrospective study 27 cancer patient 26 procedures 26 head and neck squamous cell carcinoma 25 cancer survival 24 overall survival 24