Jintabunditwong, A., T. Tankumpuan, N. Wanitkul, and W. Wongkornrat. “Factors Predicting Severity of Postoperative Pulmonary Complications within the First 7 Days among Open-Heart Surgery Patients”. Nursing Science Journal of Thailand, vol. 44, no. 1, Feb. 2026, pp. 19-35, https://he02.tci-thaijo.org/index.php/ns/article/view/277857.