Santos-Cortez, Regie Lyn P., Charlotte M. Chiong, Ma. Luz San Agustin, Charina Melinda C. Elgar, Genilou Liv M. Gimena, Scheherazade C. Ibrahim, Rodante A. Roldan, Ma. Rina T. Reyes-Quintos, Abner L. Chan, and Generoso T. Abes. 2007. “The Philippine National Ear Institute: Patient and Audiologic Profiles”. Philippine Journal of Otolaryngology Head and Neck Surgery 22 (1-2):12-18. https://doi.org/10.32412/pjohns.v22i1-2.789.