Crisostomo, M., and C. Ureta. “Salivary PH and Taste Sensitivity Among Geriatric and Non-Geriatric Patients in a Tertiary Hospital: A Cross Sectional Study”. Philippine Journal of Otolaryngology Head and Neck Surgery, Vol. 34, no. 2, Dec. 2019, pp. 11-15, doi:10.32412/pjohns.v34i2.125.