Ponrung , L., Akkadechanunt , T. ., & Wichaikhum , O.-A. (2020). Applying Lean Thinking to Improve Patient Discharge Process, Female Medical Ward 1, Buddhachinnaraj Phitsanulok Hospital. Nursing Journal CMU, 47(2), 440–452. Retrieved from https://he02.tci-thaijo.org/index.php/cmunursing/article/view/241834