Thienthong S. Clinical Guidance for Acute Postoperative Pain Management 2019 The Royal College of Anesthesiologists of Thailand (RCAT) and The Thai Association for the Study of Pain (TASP) : Second Edition. Thai J Anesthesiol [internet]. 2019 Dec. 6 [cited 2026 Sep. 20];46(1):47-70. available from: https://he02.tci-thaijo.org/index.php/anesthai/article/view/228095