Riwluang S, Thongdee C,Petkeang R, Jingvattana N. 2017. “0.45% Hypotonic Saline Versus 0.9% Isotonic Saline Irrigation in Allergic Rhinitis : An Open Label, Randomized, Non - Inferiority Study”. Journal of The Department of Medical Services 42 (1):104-11. https://he02.tci-thaijo.org/index.php/JDMS/article/view/248918.