Using gas chromatography and mass spectrometry to determine 25-hydroxyvitamin D levels for clinical assessment of vitamin D deficiency - ScienceDirect
Ratio of 25(OH)D-to-24,25(OH)2D: A new test to confirm 24-hydroxylase (CYP24A1) deficiency as the cause of hypercalcemia - Mayo Clinic
Sulfation of vitamin D3‐related compounds—identification and characterization of the responsible human cytosolic sulfotransferases - Kurogi - 2017 - FEBS Letters - Wiley Online Library
Vitamin D Deficiency and Heart Disease, Cancer, Asthma and Diabetes
Vitamin D Deficiency: Important Signs and Symptoms
Vitamin D deficiency - Wikipedia
25-OH Vitamin D3 (Highly Pure) - Molecular Depot
Frontiers | Focus on 1,25-Dihydroxyvitamin D3 in the Peripheral Nervous System
Vitamin D3 25-Hydroxyvitamin D: Reference Range, Interpretation, Collection and Panels
25-OH-Vitamin D3/D2 Serum Controls
Vitamin D Supplement Reviews & Top Picks - ConsumerLab.com
IJMS | Free Full-Text | Epimers of Vitamin D: A Review
The dynamic relationships between the active and catabolic vitamin D metabolites, their ratios, and associations with PTH | Scientific Reports
25-OH-Vitamin D3/D2 in Serum/Plasma - HPLC
Vitamin D3 metabolite ratio as an indicator of vitamin D status and its association with diabetes complications | BMC Endocrine Disorders | Full Text
Vitamin D, beyond the bone
25-OH Vitamin D ELISA | Calbiotech
The Body Needs All Forms of Vitamin D - GrassrootsHealth
3-Epi-25-hydroxyvitamin D3 is a poor substrate for SULT2A1: Analysis of its 3-sulfate in cord plasma and recombinant human SULT2A1 incubate - ScienceDirect
Hyperparathyroidism and Vitamin D | Dr. Babak Larian
