Vitamin A supplementation in children and hearing loss: Long term follow-up suggests a potential benefit only in children with otitis media
| Autor: | Wieringa, Frank T, Dijkhuizen, Marjoleine A, Berger, Jacques |
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| Zdroj: | BMJ: British Medical Journal, 2012 Jan . 344(7841), 8-8. |
| Databáze: | JSTOR Journals |
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