Doi, Hiroki, Midori Saito, Ayane Ozaki, Yuya Ishihara, Takashi Fujita, Hidehiko Akiyama, and Hiroyasu Ito. 2023. “Unmeasurable Hemoglobin A1c Due to Extreme Hyperglycemia in High-Performance Liquid Chromatography Method: A Case Report”. Open Access Macedonian Journal of Medical Sciences 11 (C):139-42. https://doi.org/10.3889/oamjms.2023.11728.