Sathaporn, Nontanat, Akkapop Prasompon, Parkpoom Pipatbanjong, Watjanarat Panwong, and Sujittra Kluayhomthong. “Validity and Reliability of the Res-Rhythm: A Prototype Portable Respiratory Rate Measurement System in Healthy Subjects”. Journal of Medicine and Health Sciences 33, no. 1 (April 30, 2026): 16–22. accessed September 18, 2026. https://he01.tci-thaijo.org/index.php/jmhs/article/view/280846.