Wongkongkathep, S., & Ninkumhaeng, N. (2026). Changes in Primary Oral Health Service Provision in the Context of Sub-District Health Promoting Hospital Transfer: A Comparative Analysis of 2022 and 2025. Journal of Health Systems Research, 20(2), 191–201. retrieved from https://he04.tci-thaijo.org/index.php/j_hsr/article/view/4127