Relationship between the presence or absence of gengival bleeding and the enzymatic BANA test - Grisi, Márcio Fernando de Moraes; Correa Filho, Tarcirio Alves; Fanganiello, Carmen Lúcia Silva; Martins Junior, Walter; Silva Netto, Cincinato Rodrigues; Salvador, Sérgio Luiz (Brazilian Dental Journal, 2001)