Janchum S, Sae-sia W, Songwathana P. Pain Management and Outcomes Among Patients After Thoracic or Abdominal Surgery. Nursing Journal CMU [internet]. 2022 Sep. 29 [cited 2026 Jan. 7];49(3):188-202. available from: https://he02.tci-thaijo.org/index.php/cmunursing/article/view/257605