Varkey, Simmy M, PK Babu, and Varghese P Punnoose. “Measuring Pain Behaviour: Scale of Pain Expression Behaviours (SOPEB)”. Kerala Journal of Psychiatry 30, no. 2 (March 31, 2018): 73–78. Accessed December 22, 2024. https://kjponline.com/index.php/kjp/article/view/124.