Effects of vitamin D supplementation on bone density in healthy children: systematic review and meta-analysis
| Autor: | Winzenberg, Tania, Powell, Sandi, Shaw, Kelly Anne, Jones, Graeme |
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| Zdroj: | BMJ: British Medical Journal, 2011 Jan . 342(7791), 267-267. |
| Databáze: | JSTOR Journals |
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