Predictive factors for late cervical metastasis in stage I and II squamous cell carcinoma of the lip - Kavabata, Norberto K; Caly, Decio N; Ching, Ting H; Goncalves, Antonio J; Kowalski, Luis P; Cernea, Claudio Roberto (European archives of oto-rhino-laryngology, 2019)