Chiong, C. M., Mercado-Evasco, R. T., Chiong, A. E., Perez, M. E. C., Abes, F. L. L., & Chan, A. L. (2016). Congenital Oval Window Aplasia: An Unusual Cause of Conductive Hearing Loss in an Adult. Philippine Journal of Otolaryngology Head and Neck Surgery, 31(1), 39–44. https://doi.org/10.32412/pjohns.v31i1.315