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Vitamin D Deficiency in Children with a Chronic Illness–Seasonal and Age-Related Variations in Serum 25-hydroxy Vitamin D Concentrations
Holmlund-Suila E,
Koskivirta P,
Metso T,
Andersson S,
Mäkitie O,
et al.
(2013)
Vitamin D Deficiency in Children with a Chronic Illness–Seasonal and Age-Related Variations in Serum 25-hydroxy Vitamin D Concentrations.
PLOS ONE 8(4): e60856.
https://doi.org/10.1371/journal.pone.0060856