TY - RPRT TI - Candidate reference method for the quantification of circulating 25-hydroxyvitamin D3 by liquid chromatography-tandem mass spectrometry. AU - Michael Vogeser AU - Apostolos Kyriatsoulis AU - Erasmus Huber AU - Uwe Kobold PY - 2004 DO - 10.1373/clinchem.2004.031831 UR - https://pubmed.ncbi.nlm.nih.gov/15277348/ ID - 15277348 ER -