Immunohistochemical evaluation of MMP-2, MMP-9 and CD31/microvascular density in squamous cell carcinomas of the floor of the mouth - Amado, Flávio Monteiro; Silva, Igor Iuco Castro da; Lima, Cristina Jardelino de; Soares, Fernando Augusto; Kowalski, Luiz Paulo; Granjeiro, José Mauro (Brazilian Dental Journal, 2013)