1) MANDEL I. D. The functions of saliva. J. Dent. Res.. (1987) vol.66, no.Spec. Iss., p.623-627.
2) DOWD F. J. Saliva and dental caries. Dent. Clin. North Am.. (1999) vol.43, p.579-597.
5) DAWES C. Physiological factors affecting salivary flow rate, oral sugar clearance, and the sensation of dry mouth in man. J. Dent. Res.. (1987) vol.66, no.Spec. Iss., p.648-653.
7) DAWES C. Stimulus effects on protein and electrolyte concentrations in parotid saliva. J. Physiol.. (1984) vol.346, p.579-588.
8) ERICSON S. The importance of sialography for the determination of the parotid flow. The normal variation in salivary output in relation on the size of the gland at stimulation with-citric acid. Acta Otolaryng.. (1971) vol.72, p.437-444.