Laopakorn, C., P. Kunakorn, and P. Wacharasint. “Burnout syndrome among Thai intensivists and nurses in pre-COVID19 era : Burnout in pre-COVID19”. Clinical Critical Care, vol. 29, Dec. 2021, p. 2021:e0009, https://he02.tci-thaijo.org/index.php/ccc/article/view/254181.