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Could giardiasis be a risk factor for low zinc status in schoolchildren from northwestern Mexico? A cross-sectional study with longitudinal follow-up

Luis Quihui*, Gloria G Morales, Rosa O Méndez, Johanna G Leyva, Julián Esparza and Mauro E Valencia

BMC Public Health 2010, 10:85  doi:10.1186/1471-2458-10-85