“DECREASED EXPIRATORY PEAK CURRENT IN COPD PATIENTS WITH BUTEYKO BREATHING TECHNIQUES”. INTERNATIONAL JOURNAL OF NURSING AND MIDWIFERY SCIENCE (IJNMS) 8, no. 2 (August 20, 2024): 240–247. Accessed August 1, 2025. https://ijnms.net/index.php/ijnms/article/view/594.