Recurring acinic cell carcinoma of the buccal mucosa: a case report - Hirota, Sílvio Kenji; Modolo, Filipe; Albuquerque, Marco Antônio Portela de; Lehn, Carlos Neutzling; Sugaya, Norberto Nobuo; Sousa, Suzana Cantanhede Orsini Machado de; Cavalcanti, Marcelo Gusmão Paraíso (Quintessence International, 2007)