Nature
Vol.456, No.7220
Epidemiology & Infection
Vol.136, Issue 12, December 2008
Tropical Animal Health & Production
Vol.40, No.8, December 2008
Medecine Tropicale
Vol.68, No.5, October 2008
(not available online)
Morbidity and Mortality Weekly Report
Vol.57, No.44, November 7 2008
No comments:
Post a Comment