Poonnapatch Sakaew, Kunchit Kongros, Phanthira Wongsri, Napaporn Apiratmateekul, and Wanvisa Treebuphachatsakul, “Performance of a Hematocrit Determination in Health Promotion Hospitals When Using Different Assigned Values”, ijpbs, vol. 11, no. 4, pp. 77–82, Dec. 2020.