Journal of Health Population and Nutrition.
Vol. 26 No.3 Sep 2008.
Clinical Pediatrics
Vol. 47, No.8 Oct 2008.
Memorias do Instituto Oswaldo Cruz
Vol. 103, No.4, June 2008.
Public Health Reports
Vol. 123, No. 3, May/June 2008.
Nature Medicine
Vol. 14, No. 9, Sep 2008
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