human 273 Humans 228 female 166 Article 140 male 140 adult 134 Female 111 controlled study 92 Male 86 middle aged 85 major clinical study 79 pathology 74 aged 73 priority journal 68 Middle Aged 67 retrospective study 63 Adult 56 follow up 52 genetics 52 Aged 47 Oncology 47 procedures 46 Head and Neck Neoplasms 45 Retrospective Studies 45 antineoplastic agent 45 overall survival 45 cancer staging 44 cancer patient 43 cohort analysis 43 head and neck tumor 43