A comparison of analytical methods for measuring concentrations of 25-hydroxy vitamin D in biological samples - Analytical Methods (RSC Publishing)
![IMD Institut für medizinische Diagnostik, Labor: Freies Vitamin D - Verbesserte Diagnostik der Vitamin D-Versorgung IMD Institut für medizinische Diagnostik, Labor: Freies Vitamin D - Verbesserte Diagnostik der Vitamin D-Versorgung](https://www.imd-potsdam.de/fileadmin/_processed_/a/6/csm_319_Abb_2_7c60f7b006.png)
IMD Institut für medizinische Diagnostik, Labor: Freies Vitamin D - Verbesserte Diagnostik der Vitamin D-Versorgung
![Test tube with blood sample for 25-OH vitamin D or vitamin D2/D3 test, diagnosis for bone disease Stock-Foto | Adobe Stock Test tube with blood sample for 25-OH vitamin D or vitamin D2/D3 test, diagnosis for bone disease Stock-Foto | Adobe Stock](https://as2.ftcdn.net/v2/jpg/04/40/09/25/1000_F_440092554_d4bzQH6OFS2sxZiwXRuUiC2G2uh60faT.jpg)
Test tube with blood sample for 25-OH vitamin D or vitamin D2/D3 test, diagnosis for bone disease Stock-Foto | Adobe Stock
![Chemical structures of vitamin D-2, vitamin D-3, 25-hydroxyvitamin D-2,... | Download Scientific Diagram Chemical structures of vitamin D-2, vitamin D-3, 25-hydroxyvitamin D-2,... | Download Scientific Diagram](https://www.researchgate.net/publication/236121729/figure/fig1/AS:393346230046724@1470792457224/Chemical-structures-of-vitamin-D-2-vitamin-D-3-25-hydroxyvitamin-D-2-and.png)
Chemical structures of vitamin D-2, vitamin D-3, 25-hydroxyvitamin D-2,... | Download Scientific Diagram
![319 Freies Vitamin D - Verbesserte Diagnostik der Vitamin D-Versorgung - IMD Institut für medizinische Diagnostik, Labor 319 Freies Vitamin D - Verbesserte Diagnostik der Vitamin D-Versorgung - IMD Institut für medizinische Diagnostik, Labor](https://www.imd-berlin.de/fileadmin/user_upload/Diag_Info/319_Abb_2.png)
319 Freies Vitamin D - Verbesserte Diagnostik der Vitamin D-Versorgung - IMD Institut für medizinische Diagnostik, Labor
![Opposite correlation of 25-hydroxy-vitamin D- and 1,25-dihydroxy-vitamin D-metabolites with gestational age, bone- and lipid-biomarkers in pregnant women | Scientific Reports Opposite correlation of 25-hydroxy-vitamin D- and 1,25-dihydroxy-vitamin D-metabolites with gestational age, bone- and lipid-biomarkers in pregnant women | Scientific Reports](https://media.springernature.com/full/springer-static/image/art%3A10.1038%2Fs41598-021-81452-9/MediaObjects/41598_2021_81452_Fig1_HTML.png)
Opposite correlation of 25-hydroxy-vitamin D- and 1,25-dihydroxy-vitamin D-metabolites with gestational age, bone- and lipid-biomarkers in pregnant women | Scientific Reports
![Vitamin D3 metabolite ratio as an indicator of vitamin D status and its association with diabetes complications | BMC Endocrine Disorders | Full Text Vitamin D3 metabolite ratio as an indicator of vitamin D status and its association with diabetes complications | BMC Endocrine Disorders | Full Text](https://media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs12902-020-00641-1/MediaObjects/12902_2020_641_Fig1_HTML.png)