Imnamkhao, S., Jantasin, B., Chaiwong, C., Muenthaisong, S., Taveekaew, C., Suriya, N., & Promsuan, W. (2023). Lessons Learned from the Tertiary Health Service Systems during Critical COVID-19 Pandemic in the Northeast of Thailand. Journal of Health Systems Research, 17(3), 473–89. retrieved from https://he04.tci-thaijo.org/index.php/j_hsr/article/view/2755