![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)
Vitamin D3 metabolite ratio as an indicator of vitamin D status and its association with diabetes complications | BMC Endocrine Disorders | Full Text
![3-epi-25-hydroxy Vitamin D3 (3-epi-25(OH)D3, 3-epi-25-hydroxy Cholecalciferol, CAS Number: 73809-05-9) | Cayman Chemical 3-epi-25-hydroxy Vitamin D3 (3-epi-25(OH)D3, 3-epi-25-hydroxy Cholecalciferol, CAS Number: 73809-05-9) | Cayman Chemical](https://www.caymanchem.com/images/catalog/screen/34200.png)
3-epi-25-hydroxy Vitamin D3 (3-epi-25(OH)D3, 3-epi-25-hydroxy Cholecalciferol, CAS Number: 73809-05-9) | Cayman Chemical
A comparison of analytical methods for measuring concentrations of 25-hydroxy vitamin D in biological samples - Analytical Methods (RSC Publishing)
![The relationship between serum 25-hydroxyvitamin D levels and the severity of COVID-19 disease and its mortality | Scientific Reports The relationship between serum 25-hydroxyvitamin D levels and the severity of COVID-19 disease and its mortality | Scientific Reports](https://media.springernature.com/m685/springer-static/image/art%3A10.1038%2Fs41598-021-97017-9/MediaObjects/41598_2021_97017_Fig1_HTML.png)
The relationship between serum 25-hydroxyvitamin D levels and the severity of COVID-19 disease and its mortality | Scientific Reports
![3-O-(2-Aminoethyl)-25-hydroxyvitamin D3 (25-Hydroxy Vitamin D3 3,3'-Aminopropyl Ether) | VD/VDR Chemical | MedChemExpress 3-O-(2-Aminoethyl)-25-hydroxyvitamin D3 (25-Hydroxy Vitamin D3 3,3'-Aminopropyl Ether) | VD/VDR Chemical | MedChemExpress](https://file.medchemexpress.com/product_pic/hy-15254.gif)
3-O-(2-Aminoethyl)-25-hydroxyvitamin D3 (25-Hydroxy Vitamin D3 3,3'-Aminopropyl Ether) | VD/VDR Chemical | MedChemExpress
![25-Hydroxyvitamin D assay standardisation and vitamin D guidelines paralysis | Public Health Nutrition | Cambridge Core 25-Hydroxyvitamin D assay standardisation and vitamin D guidelines paralysis | Public Health Nutrition | Cambridge Core](https://static.cambridge.org/binary/version/id/urn:cambridge.org:id:binary:20200417131216972-0628:S1368980019005251:S1368980019005251_fig1.png?pub-status=live)
25-Hydroxyvitamin D assay standardisation and vitamin D guidelines paralysis | Public Health Nutrition | Cambridge Core
![Using gas chromatography and mass spectrometry to determine 25-hydroxyvitamin D levels for clinical assessment of vitamin D deficiency - ScienceDirect Using gas chromatography and mass spectrometry to determine 25-hydroxyvitamin D levels for clinical assessment of vitamin D deficiency - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S1021949818301844-fx1.jpg)
Using gas chromatography and mass spectrometry to determine 25-hydroxyvitamin D levels for clinical assessment of vitamin D deficiency - ScienceDirect
![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
![Metabolism of 25-hydroxyvitamin D [25(OH)D] to 1,25 dihydroxyvitamin D... | Download Scientific Diagram Metabolism of 25-hydroxyvitamin D [25(OH)D] to 1,25 dihydroxyvitamin D... | Download Scientific Diagram](https://www.researchgate.net/publication/276330858/figure/fig2/AS:391959169519618@1470461756789/Metabolism-of-25-hydroxyvitamin-D-25OHD-to-1-25-dihydroxyvitamin-D-1-25OH2D-for.png)