Vaccination against poliomyelitis in Czechoslovakia in 1957. I. The epidemiological situation with regard to poliomyelitis in Czechoslovakia and the organization of the vaccination programme in 1957.
D035843:Biomedical Research; D003604:Czechoslovakia; D006801:Humans; D017589:Immunization Programs; D009938:Organizations; D011051:Poliomyelitis / Q000517:prevention & control*; D014611:Vaccination
POLIOMYELITIS/prevention and control