Khunngio, L., & Peerapattana, P. (2014). An application of the value stream mapping and computer simulation for reducing an average service time for patients in the emergency care unit : a case study of the out-patient emergency care unit, Srinagarind Hospital. Engineering and Applied Science Research, 40(4), 527–538. Retrieved from https://ph01.tci-thaijo.org/index.php/easr/article/view/21740