ใจหาญ น. (2019) “Nauseous factor in patients undergo abdominal surgery in anesthetic department of Chumphon Khet Udomsakdi hospital”., Region 11 Medical Journal, 33(1), pp. 171–180. available at: https://he02.tci-thaijo.org/index.php/Reg11MedJ/article/view/188758 (accessed: 20 September 2026).