Elective neck dissection for carcinoma of the tongue and floor of the mouth.
D006801:Humans; D008207:Lymphatic Metastasis; D008722:Methods; D009062:Mouth Neoplasms / Q000601:surgery*; D037981:Neck Dissection; D009364:Neoplasm Recurrence, Local; D014062:Tongue Neoplasms / Q000601:surgery*