Hernández-Castañeda, A. A., Aranzazu-Moya, G. C., Mora, G. M. and Queluz, D. de P. (2015) “Chemical salivary composition and its relationship with periodontal disease and dental calculus”, Brazilian Journal of Oral Sciences. Limeira, SP, 14(2), pp. 159–165. doi: 10.20396/bjos.v14i2.8640832.