[CURRENT STATUS OF ACTIVE MEASLES PREVENTION].
D003140:Communicable Disease Control; D003604:Czechoslovakia; D006801:Humans; D008457:Measles; D008458:Measles Vaccine
D008458:Measles Vaccine
COMMUNICABLE DISEASE CONTROL; CZECHOSLOVAKIA; MEASLES VACCINE
SOU CASN'Y STAV ADTIVN'I PREVENCE SPALNI CNEK.