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4. Wild poliovirus importations--West and Central Africa, January 2003-March 2004. Centers for Disease Control and Prevention (CDC). MMWR Morb Mortal Wkly Rep; 2004 May 28; 53(20):433-5. PubMed ID: 15163930 [Abstract] [Full Text] [Related]
5. Progress toward poliomyelitis eradication--Nigeria, January 2003-March 2004. Centers for Disease Control and Prevention (CDC). MMWR Morb Mortal Wkly Rep; 2004 Apr 30; 53(16):343-6. PubMed ID: 15123987 [Abstract] [Full Text] [Related]