[PRESENT PROBLEMS IN THE SPECIFIC PREVENTION OF WHOOPING COUGH].
D035843:Biomedical Research; D001699:Biometry; D002648:Child; D006801:Humans; D010567:Pertussis Vaccine; D013223:Statistics as Topic; D014586:USSR; D014611:Vaccination; D014917:Whooping Cough
D010567:Pertussis Vaccine
CHILD; PERTUSSIS VACCINE; STATISTICS; USSR; VACCINATION
AKTUAL'NYE VOPROSY SPETSIFICHESKO I PROFILAKTIKI KOKLIUSHA.