| Article ID | Journal | Published Year | Pages | File Type | 
|---|---|---|---|---|
| 8312748 | Clinica Chimica Acta | 2013 | 6 Pages | 
Abstract
												Relatively large within-lab and between-lab variability hinders conclusive assessments of bias and accuracy.
											Keywords
												25(OH)D2SRM25-Hydroxyvitamin D23-epi-25(OH)D3vitamin D External Quality Assessment SchemeDEQASABVDNISTIOMRMPCLIA25(OH)D325-hydroxyvitamin D25-hydroxyvitamin D3enzyme immunoassaychemiluminescence immunoassayEIAQuality assurancereference measurement procedureMass spectrometrystandard reference materialInterlaboratory comparisonInstitute of MedicineNational Institute of Standards and TechnologyImmunoassayliquid chromatography
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											Authors
												Mary Bedner, Katrice A. Lippa, Susan S.-C. Tai, 
											