Perez, H. A., N. Chan, B. Crawley, P. Krishna, C. A. Church, and K. A. Seiberling. “The Diagnostic Workup of Patients With a Primary Complaint of Post-Nasal Drip”. International Journal of Otorhinolaryngology and Head and Neck Surgery, vol. 9, no. 6, May 2023, pp. 435-8, doi:10.18203/issn.2454-5929.ijohns20231461.