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17. Introduction to inactivated polio vaccine and switch from trivalent to bivalent oral poliovirus vaccine worldwide, 2013-2016. Wkly Epidemiol Rec; 2015 Jul; 90(27):337-43. PubMed ID: 26151981 [No Abstract] [Full Text] [Related]
18. Update on vaccine-derived polioviruses--worldwide, April 2011-June 2012. Centers for Disease Control and Prevention (CDC) MMWR Morb Mortal Wkly Rep; 2012 Sep; 61():741-6. PubMed ID: 22992572 [TBL] [Abstract][Full Text] [Related]
19. Eradication of wild poliovirus type 3 may be within reach, say CDC and WHO. McCarthy M BMJ; 2014 Nov; 349():g6817. PubMed ID: 25398435 [No Abstract] [Full Text] [Related]