This test reflected the total amount of vitamin D in the body ... Low concentrations of 25-OH vitamin D causes secondary hyperparathyroidism (high levels of parathyroid hormone or PTH).
A new study published in the European Archives of Oto-Rhino-Laryngology revealed that serum 25(OH)D deficiency is an ...
This study was limited by the single timepoint assessment of 25(OH)D levels and the lack of participants with very low or very high vitamin D levels, potentially affecting the generalizability of ...
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