title: Polio vaccine and Gresham's law.
authors.forename: C
authors.initials: C
authors.lastname: Sathyamala
authors.forename: Jacob M
authors.initials: JM
authors.lastname: Puliyel
mesh_terms: D002648:Child; D003365:Costs and Cost Analysis; D006801:Humans; D017589:Immunization Programs; D007194:India; D011051:Poliomyelitis / Q000517:prevention & control*; D023321:Poliovirus Vaccines / Q000191:economics*
chemical_list: D023321:Poliovirus Vaccines