[On the effectiveness of various methods of smallpox immunization].
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D008722:Methods; D012899:Smallpox / Q000517:prevention & control*; D012900:Smallpox Vaccine / Q000008:administration & dosage*; D014611:Vaccination / Q000295:instrumentation*
D012900:Smallpox Vaccine
Ob effektivnosti razlichnykh metodov immunizatsii protiv ospy.