Pradana, A., Tarigan, A. P. ., Pandia, P. ., Pangestu, D., & Andini, N. (2026). THE RELATIONSHIP BETWEEN DIAPHRAGMATIC THICKNESS AND PULMONARY FUNCTION IN PATIENTS WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE: A CROSS SECTIONAL STUDY. Respiratory Science, 6(3). https://doi.org/10.36497/respirsci.v6i3.231