Bilalee, S., K. Maneewat, and W. Sae-Sia. “Pain, Pain Management and Pain Management Outcomes in Chest Trauma Patients: The Preliminary Study”. Songklanagarind Journal of Nursing, vol. 37, no. Supplement, Dec. 2017, pp. 51-59, https://he02.tci-thaijo.org/index.php/nur-psu/article/view/106781.