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. 2017 Mar 3;9(3):229. doi: 10.3390/nu9030229

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© 2017 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Prevalence of vitamin D deficiency and insufficiency (serum 25(OH)D < 50 nmol/L) in the Middle East by age and gender (Sources: KSA [11,24,40,48]; UAE [20,30]; Lebanon [18,34]; Egypt [19,26,27,44]).