[Epidemiological study on the effectiveness of the extract-precipitate pertussis vaccine].
D035843:Biomedical Research; D016021:Epidemiologic Studies; D006801:Humans; D010567:Pertussis Vaccine; D014917:Whooping Cough / Q000517:prevention & control*
D010567:Pertussis Vaccine
WHOOPING COUGH/prevention and control
A kivonatos; csapadékos pertussis elleni oltóanyag hatékonyságának járványtani vizsgálata.