Clinical stage classification in head and neck cancer.
D006801:Humans; D007822:Laryngeal Neoplasms / Q000145:classification*; D008499:Medical Records; D009062:Mouth Neoplasms / Q000145:classification*; D009303:Nasopharyngeal Neoplasms / Q000145:classification; D010610:Pharyngeal Neoplasms / Q000145:classification*; D014062:Tongue Neoplasms / Q000145:classification