Spolidorio, D. M. P.; Höfling, J. F.; Rosa, E. A. R.; Pereira, C. V.; Moreira, D.; Gonçalves, R. B. Salivary Biotypes of Mutans Streptococci Levels in Schoolchildren Aging 6-8 Year Old Having a Socioeconomic Base. Braz. J. Oral Sci. 2015, 3, 390-394.