Nilyam, P., L. Permpolprasert, P. Apidechahul, and C. Rungjindamai. “A comparison of pain assessment following cesarean section between ward nurse and pain management team in Siriraj Hospital”. Thai Journal of Anesthesiology, vol. 42, no. 4, Dec. 2016, pp. 291-9, https://he02.tci-thaijo.org/index.php/anesthai/article/view/92218.