The authors and the journal apologise for errors in the Introduction section of this paper published in the European Journal of Endocrinology 2010 vol 163 pp 339–348. Lines 11–14 of the Introduction section should read as follows:
This reflects the amount of vitamin D ingested from food (ergocalciferol (vitamin D2) or cholecalciferol (vitamin D3)) and the amount of vitamin D produced in the skin during ultraviolet B (UVB) exposure (vitamin D3)
and not as published.
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