Ueawattanasirikul, Chanya, Sirinun Boripuntakul, Khanittha Wonglangka, and Decha Pinkaew. “Correlation Between Thoracic Kyphosis and Pulmonary Function in Elderly”. Journal of Associated Medical Sciences 53, no. 2 (April 30, 2020): 23–30. Accessed March 29, 2024. https://he01.tci-thaijo.org/index.php/bulletinAMS/article/view/235323.