[URGENT PROBLEMS OF HEALTH PROTECTION IN THE CRUDE OIL INDUSTRY].
D003604:Czechoslovakia; D006262:Health; D006801:Humans; D007221:Industry; D009787:Occupational Medicine; D009821:Oils; D010578:Petroleum
D009821:Oils; D010578:Petroleum
CZECHOSLOVAKIA; INDUSTRIAL MEDICINE; OILS
AKTU'ALNE OT'AZKY OCHRANY ZDRAVIA V ROPNOM PRIEMYSLE.