Vitamin D deficiency and low hemoglobin level as risk factors for severity of acute lower respiratory tract infections in Egyptian children: A case-control study
| Autor: | El Sakka, Abeer S., Imam, Safaa S., Amer, Hanaa A., Moustafa, Samah A. |
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| Zdroj: | In Egyptian Pediatric Association Gazette March 2014 62(1):1-7 |
| Databáze: | ScienceDirect |
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