Lack of transferability between different immunoassays and LC-MS/MS for total 25-hydroxyvitamin D measurement and disagreement defining deficiency

1. Ajuria-Morentin, I.
2. Mar-Medina, C.
3. Bereciartua-Urbieta, E.
4. Izquierdo-Quirce, F.
5. Valladares-Gómez, C.
6. Crespo-Picot, E.
7. Jaume, T.