Nopuan, J., and T. Vaniyapong. “The outcome of early versus late tracheostomy in neurosurgery patients: A preliminary study of open RCT”. Thai Journal of Neurological Surgery, vol. 12, no. 2, Oct. 2025, pp. 39-47, https://he05.tci-thaijo.org/index.php/TJNS/article/view/6739.