ChildSinghal, Tanu2013-01-092013-01-092009-11Singhal Tanu. Reply. Indian Pediatrics. 2009 Nov; 46(11): 1022-1024.http://imsear.searo.who.int/handle/123456789/144226enCollected Correspondence [Publication Type]Correspondence as TopicHumansImmunizationPoliovirus Vaccine, Oral --administration & dosageArticle