A. C. P. Arriola, A. H. Chua, and R. J. F. Tactacan-Abrenica, “Otorhinolaryngologic Manifestations of Human Immunodeficiency Virus Infection in Manila, the Philippines”, Philipp J Otolaryngol Head Neck Surg, vol. 30, no. 2, pp. 8–12, Dec. 2015.