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Importation and circulation of poliovirus in Bulgaria in 2001.
Bull. W.H.O. (Print) ; 81(7): 476-481, 2003.
Article in English | WHO IRIS | ID: who-268981
Responsible library: CH1.1
Full text: Available Collection: Databases of international organizations Database: WHO IRIS Language: English Journal: Bull. W.H.O. (Print) Year: 2003 Document type: Article
Full text: Available Collection: Databases of international organizations Database: WHO IRIS Language: English Journal: Bull. W.H.O. (Print) Year: 2003 Document type: Article
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