Yankai, A. ., Leelarungrayub, J. ., Kanthain, R. . and Laskin, J. J. . (2021) “Preliminary Study: Immediate Effect of the Slow Deep Breathing Exercise and Sustained Maximal Inspiration with Volume-Oriented Incentive Spirometry on the Diffusing Lung Capacity in Healthy Young Participants”, Trends in Sciences. Nakhon Si Thammarat, Thailand, 18(21), p. 346. doi: 10.48048/tis.2021.346.