Santos-Cortez, R.L.P., Chiong, C.M., San Agustin, M.L., Elgar, C.M.C., Gimena, G.L.M., Ibrahim, S.C., Roldan, R.A., Reyes-Quintos, M.R.T., Chan, A.L. and Abes, G.T. 2007. The Philippine National Ear Institute: Patient and Audiologic Profiles. Philippine Journal of Otolaryngology Head and Neck Surgery. 22, 1-2 (Nov. 2007), 12–18. DOI:https://doi.org/10.32412/pjohns.v22i1-2.789.