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. 2015 Sep 29;7(3):5979. doi: 10.4081/idr.2015.5979

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©Copyright D. Micic et al.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 1. — Serum 25-hydroxyvitamin D subgroup analysis. This figure compares mean serum 25-hydroxyvitamin D levels categorized by: A) age, B) extended care facility (ECF) residence, C) season, D) gender and E) exogenous vitamin D supplementation. Only exogenous vitamin D supplementation demonstrated statistically significant higher levels of mean 25-hydroxyvitamin D (P=0.01).