Saensri, S., Phaiphukhiao, K., Yatsomboon, S., Iamsaard, P. and Charernyuth, P. 2023. A study of Performance According to Occupational Health and Environmental Medicine Service Standard in the hospital, Health Region 9, 2021-2022. Journal of the Office of Disease Prevention and Control 9 Nakhon Ratchasima. 29, 3 (Aug. 2023), 35–49.