Predictive factors for late cervical metastasis in stage I and II squamous cell carcinoma of the lip. - Kavabata NK; Caly DN; Ching TH; Gonçalves AJ; Kowalski LP; Cernea CR (European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery, 2019)