Unrit, Kengkaj, Pookkwan Phase, and Supasin Deeraksa. 2026. “Effect of Adding Long-acting β2-agoniststo Inhaled Corticosteroids in Uncontrolled Preschool Asthma: A Retrospective Observational Study at Mahasarakham Hospital”. Princess of Naradhiwas University Journal 18 (1):304-21. https://li01.tci-thaijo.org/index.php/pnujr/article/view/269427.