,Vashishtha, Vipin MJohn, T JacobAgarwal, R KKalra, Ajay2008-10-252009-05-272008-10-252009-05-272008-10-25, Vashishtha VM, John TJ, Agarwal RK, Kalra A. Universal immunization program and polio eradication in India. Indian Pediatrics. 2008 Oct; 45(10): 807-13http://imsear.searo.who.int/handle/123456789/8180engChildChild WelfareHumansImmunization Programs --organization & administrationIndia --epidemiologyPoliomyelitis --epidemiologyPoliovirus --classificationPopulation SurveillanceSocieties, MedicalJournal Article