1. 1) Nakamura M, Sato S, and Shimamoto T: The establishment of monitoring system over years for clinical chemistry data in the National Health and Nutrition Survey in Japan. (abstract, Japanese). Jpn J Public Health, 2005; 52: 415
2. 2) Nakamura M, Sato S, and Shimamoto T: The monitoring system over years for clinical chemistry data in the National Health and Nutrition Survey in Japan. (abstract, Japanese). Jpn J Public Health, 2006; 53: 425
3. 3) Nakamura M, Sato S, and Shimamoto T: Is it sufficient for evidence of performance in direct LDL cholesterol measurement of metabolic syndrome? (abstract, Japanese). Jpn J Public Health, 2007; 54: 414
4. 4) Klee GG and Killeen AA: College of American Pathologists 2003, Fresh Frozen Serum Proficiency testing Studies. Arch Pathol Lab Med, 2005; March: 292-293
5. 5) Ross JW, Miller WG, Myers GL, and Praestgaard J: The accuracy of laboratory measurements in clinical chemistry: a study of 11 routine chemistry analytes in the College of American Pathologists Chemistry Survey with fresh frozen serum, definitive methods, and reference methods. Arch Pathol Lab Med, 1998; 122: 587-608