title: From the Centers for Disease Control and Prevention. Certification of poliomyelitis eradication--the Americas, 1994.
mesh_terms: D000569:Americas / Q000453:epidemiology; D006801:Humans; D017589:Immunization Programs; D010175:Pan American Health Organization; D011051:Poliomyelitis / Q000453:epidemiology* / Q000517:prevention & control