Sanchez, R. C., B. S. Campomanes, and N. A. Aguilar. “Low Dose, Short-Term Oral Methylprednisolone for Nasal Polyps: A Randomized Double-Blind Placebo-Controlled Trial”. Philippine Journal of Otolaryngology Head and Neck Surgery, vol. 21, no. 1-2, Nov. 2006, pp. 24-27, doi:10.32412/pjohns.v21i1-2.825.