Abstracts on hygiene and communicable diseases
Vol.83, No.12, December 2008
(not available online)
Nature
Vol.456, No.7221, 27 November 2008
Annals of Tropical Paediatrics
Vol.28, No.4, December 2008
Morbidity and Mortality Weekly Report
Vol.57, No.45, November 14, 2008
Vol.57, No.RR-9, November 7, 2008
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