Oral Cancer Treatment: Still an Indication for Elective Neck Dissection? - Koyama, Leonardo Kenji Sakaue; Matos, Leandro Luongo; Kulcsar, Marco Aurelio Vamondes; Araujo Filho, Vergilius Jose Furtado de; Cernea, Claudio Roberto (Orl-journal for oto-rhino-laryngology head and neck surgery, 2018)