Karzon, D T The future roles of oral polio vaccine and enhanced potency inactivated polio vaccine. [electronic resource] - The Pediatric infectious disease journal Dec 1991 - 966 p. digital Publication Type: Journal Article ISSN: 0891-3668 Standard No.: 10.1097/00006454-199112000-00027 doi Subjects--Topical Terms: ForecastingHumansPoliomyelitis--prevention & controlPoliovirus Vaccine, InactivatedPoliovirus Vaccine, Oral