อุสายพันธ์ ณ.; สิทธิกูล ภ. Comparison between physical therapy with incentive spirometry and physical therapy alone on chest expansion of patients after open heart surgery. Region 11 Medical Journal, [S. l.], v. 31, n. 4, p. 599–608, 2017. Disponível em: https://he02.tci-thaijo.org/index.php/Reg11MedJ/article/view/171958. Acesso em: 20 sep. 2026.