Histological grading of epidermoid carcinomas in the head and neck.
D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D005500:Follow-Up Studies; D006258:Head and Neck Neoplasms / Q000473:pathology*; D006801:Humans; D008207:Lymphatic Metastasis; D011379:Prognosis