Waragulnukroh, Watcharee, Sudaporn Payakkaraung, Wilawan Achawakulthep, and Luksana Bunprakong. 2011. “Pain Experience in Patients Undergoing Total Knee Replacement”. Nursing Science Journal of Thailand 29 (3):74-82. https://he02.tci-thaijo.org/index.php/ns/article/view/2787.