Identification of groups and models of risk to periodontal disease - Reis, Thaila Fernanda dos; Menino, João Felipe; Bom, Vinícius Leite Pedro; Brown, Neil Andrew; Colabardini, Ana Cristina; Savoldi, Marcela; Goldman, Maria Helena de Souza; Rodrigues, Fernando; Goldman, Gustavo Henrique (PLOS ONE, 2013)