Quiambao, A. Y., and F. E. Pio-Gulapan. “Competency in End-of-Life Care Among ENT – HNS Consultants and Residents: A Multi-Center Study”. Philippine Journal of Otolaryngology Head and Neck Surgery, vol. 23, no. 2, Dec. 2008, pp. 5-13, doi:10.32412/pjohns.v23i2.725.