Numjaitaharn, S., Tharnprisan, P., Rongtonggul, R., Chouwajaroen, P., Prasertcharoensuk, W. and Thienthong, S. (2013) “A postoperative pain survey in the second day after cesarean section”, Srinagarind Medical Journal, 21(1), pp. 9–16. Available at: https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/13201 (Accessed: 7 August 2022).