title: Survey of vaccination status and past smallpox experience of an urban population of West Pakistan.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D008433:Mathematics; D008875:Middle Aged; D010154:Pakistan; D011159:Population Surveillance; D012494:Sampling Studies; D012737:Sex Factors; D012899:Smallpox / Q000453:epidemiology* / Q000276:immunology / Q000517:prevention & control; D014505:Urban Population; D014611:Vaccination