Acta Paediatrica · 2006 · 59 citations · 14 references
Vitamin D insufficiency was frequent, especially in the end-of-winter period. Basic risk factors were low socio-economic status, illiteracy of mothers and low calcium intake.
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Hypovitaminosis D in Healthy Schoolchildren
Ghada El‐Hajj Fuleihan, Mona Nabulsi, Mahmoud Choucair et al. · PEDIATRICS · 2001 · 383 citations