Meepap, Lamduan, Donwiwat Saensom, and Nonglak Methakanjanasak. 2017. “Clinical Nursing Practice Guideline for Acute Pain Management in Critically Ill Patients”. Srinagarind Medical Journal 32 (6):561-70. https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/106322.