Rocky Malindo Sidabutar et al. 2025. COMPARISON OF UPPER EXTREMITY MUSCLE STRENGTH BETWEEN PATIENTS WITH STABLE AND EXACERBATED CHRONIC OBSTRUCTIVE PULMONARY DISEASE AT A HOSPITAL IN MEDAN. Jurnal Kedokteran dan Kesehatan : Publikasi Ilmiah Fakultas Kedokteran Universitas Sriwijaya. 12, 3 (Sep. 2025), 292–298. DOI:https://doi.org/10.32539/jkk.v12i3.688.