Rocky Malindo Sidabutar, Amira Permatasari Tarigan, Pandiaman Pandia, Taufik Ashar. COMPARISON OF UPPER EXTREMITY MUSCLE STRENGTH BETWEEN PATIENTS WITH STABLE AND EXACERBATED CHRONIC OBSTRUCTIVE PULMONARY DISEASE AT A HOSPITAL IN MEDAN. JKK [Internet]. 2025 Sep. 20 [cited 2026 Jun. 17];12(3):292-8. Available from: https://jkk-fk.ejournal.unsri.ac.id/index.php/jkk/article/view/688