khunkitti K, Muangritdech N, Thanawat T, Promsrisuk T, Sengmuang J, Chaikham T, Nadee S. Effects of slow-deep breathing training program on physical performance in older adults with a history of covid-19 infection. J Med Health Sci [internet]. 2025 Aug. 31 [cited 2025 Dec. 8];32(2):56-74. available from: https://he01.tci-thaijo.org/index.php/jmhs/article/view/277752