The Influence Of Balloon Blowing Practice On Respiration Rate And Oxygen Saturation In Asthma Patients In Grandmed Hospital  Lubuk Pakam. JKF [Internet]. 2026 Apr. 30 [cited 2026 Apr. 28];8(2):400-5. Available from: https://ejournal.medistra.ac.id/index.php/JKF/article/view/3509