MR. VINAYAK KURALE; DR. ARCHANA D. METHE; MISS. SMRUTI UMESH KURULKAR; DR. GLORIA NAIK. TO COMPARE THE EFFICACY OF BUTEYKO BREATHING EXERCISE AND 90/90 BALL & BALLON BREATHING EXERCISE IN PATIENTS WITH STAGE 1 AND STAGE 2 CHRONIC OBSTRUCTIVE PULMONARY DISEASE. Journal of Population Therapeutics and Clinical Pharmacology, [S. l.], v. 33, n. 1, p. 558–568, 2026. DOI: 10.53555/gt22qp49. Disponível em: https://www.jptcp.com/index.php/jptcp/article/view/12796. Acesso em: 30 sep. 2026.