Ungkhara, Girapong, and Thanyunuch Athakris. “Efficacy of Sterile Water Compared with Normal Saline Solution for Nasal Irrigation on the Sinonasal Symptoms in Chronic Sinusitis Patients”. Vajira Medical Journal : Journal of Urban Medicine 52, no. 3 (September 27, 2011): 193–199. accessed September 20, 2026. https://he02.tci-thaijo.org/index.php/VMED/article/view/360.