Sutrisno S, P.S A, S.D M. Pursed lips breathing on heart rate and breathing patterns in bronchial asthma patients . midwifery [Internet]. 2024 Aug. 31 [cited 2026 Jul. 17];12(3):1249-55. Available from: https://midwifery.iocspublisher.org/index.php/midwifery/article/view/1602