[Analysis of the efficacies of immunoprophylactic measures against diphtheria, measles and poliomyelitis among the population of Zibo City in the past 30 years].
D002681:China; D004165:Diphtheria / Q000453:epidemiology / Q000517:prevention & control*; D006801:Humans; D008457:Measles / Q000453:epidemiology / Q000517:prevention & control*; D011051:Poliomyelitis / Q000453:epidemiology / Q000517:prevention & control*; D014611:Vaccination