Tonika Tohri, Metilda, Sindi Sugandi. The Effect of Pursed Lip Breathing and Diaphragmatic Breathing on Increasing Oxygen Saturation in COPD Patients. J. Nurs. Pract [Internet]. 2025 Oct. 28 [cited 2025 Nov. 1];9(1):89-94. Available from: https://thejnp.org/index.php/jnp/article/view/965