Jareonrattanadaechakul N, Sukhupragarn W. The effectiveness of guide charts for visual estimation of intraoperative blood loss for anesthesia providers at Maharaj Nakorn Chiang Mai Hospital. Thai J Anesthesiol [internet]. 2017 Mar. 29 [cited 2026 Sep. 29];43(1):27-39. available from: https://he02.tci-thaijo.org/index.php/anesthai/article/view/92223