The TNM system for clinical staging of oral malignant tumors.
D006801:Humans; D008207:Lymphatic Metastasis; D009062:Mouth Neoplasms / Q000145:classification / Q000473:pathology*; D009362:Neoplasm Metastasis; D009367:Neoplasm Staging; D009369:Neoplasms / Q000145:classification*