Chilkapurwar, R. R., A. D. Diwate, and A. K. Das. “Effect of Buteyko Breathing Technique on Peak Expiratory Flow Rate in Patients Undergone Upper Abdominal Surgery”. International Journal Of Community Medicine And Public Health, vol. 11, no. 3, Feb. 2024, pp. 1322-6, doi:10.18203/2394-6040.ijcmph20240638.