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25-Hydroxyvitamin D isomerizes to pre-25-hydroxyvitamin D in solution: considerations for calibration in clinical measurements

Crossref DOI link: https://doi.org/10.1007/s00216-015-8980-z

Published Online: 2015-09-10

Published Print: 2015-10

Update policy: https://doi.org/10.1007/springer_crossmark_policy