H. Medina, Jr., M. C. Lozada, C. A. Villanueva, and M. K. K. Tan, “Inhaler Technique Comparison Between Dry Powder Inhaler and Metered Dose Inhaler Among Adults with Obstructive Airway Disease in a Tertiary Government Hospital Outpatient Setting”, Phil J Chest Dis, vol. 23, no. 1, pp. 7–13, Jun. 2025.