[NEW STAGE IN THE STRUGGLE FOR IMPROVED LIVING AND WORKING CONDITIONS].
D003604:Czechoslovakia; D006801:Humans; D019369:Life; D009787:Occupational Medicine; D011634:Public Health; D013222:State Medicine
CZECHOSLOVAKIA; INDUSTRIAL MEDICINE; PUBLIC HEALTH; STATE MEDICINE
NOV'A ETAPA BOJE ZA ZLEP SEN'I  ZIVOTN'IHO A PRACOVN'IHO PROST RED'I.