Rugsapol, Supranee, Ittichote Amornjiraporn, Peerawit Thanasanrpaiboon, and Ratchada Kitsommart. “Factors Associated with Pain Scores in Late Preterm and Term Infants Undergoing Routine Procedures”. Siriraj Medical Journal 77, no. 7 (July 1, 2025): 505–512. accessed December 6, 2025. https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/274583.