Yuenyongchaiwat, K., Buranapuntalug, S., Pongpanit, K. and Thanawattano, C. 2017. Validity of Heartbeat, Respiratory and Inspiration Muscle Strength Parameters from a Prototype of a Respiratory Device in Healthy Adults. Srinagarind Medical Journal. 32, 4 (Aug. 2017), 310–319.