Head and Neck Neoplasms 80 Humans 80 head and neck tumor 80 human 80 Article 57 female 54 male 53 adult 45 major clinical study 36 Female 35 Male 34 Squamous Cell Carcinoma of Head and Neck 34 aged 34 middle aged 34 priority journal 32 controlled study 31 Middle Aged 28 head and neck cancer 26 Aged 24 Head and neck cancer 22 head and neck squamous cell carcinoma 21 cancer patient 19 cancer staging 19 Adult 18 follow up 18 pathology 18 procedures 17 retrospective study 17 squamous cell carcinoma 17 Retrospective Studies 16