Analysis of Actinobacillus actinomycetemcomitans isolates leucotoxicity from periodontitis patients - Guazeli-Amin, H.; Jardim, E. G.; Hidalgo, M. M.; Avila-Campos, M. J.; Barbosa, D. S.; Itano, E. N. (American Association for Dental Research (AADR), 1999)