Science
Vol.319, No.5871, 28 March 2008
Emerging Infectious Diseases
Vol.14, No.4, April 2008
Waterlines
Vol.26, No.1, Quarterly, July 2007
British Medical Journal
Vol.336, No.7647, 5 April 2008
The Journal of Infectious Diseases
Vol.197, No.5, 1 March 2008
Vol.197, Supplement 2, 1 March 2008
Vol.197, No.6, 15 March 2008
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