Janyacharoen, T., Chaichanawongsa, J., Namsiri, S., Thongduang, Y., Arayawichanond, P. and Kanpittaya, J. 2023. Effects of aquatic exercise on trunk flexibility, back muscle strength, and pain scale in chronic nonspecific low back pain patients. Chulalongkorn Medical Journal. 56, 4 (Sep. 2023).