[HYGIENE PROBLEMS IN THE MANUFACTURE OF FIREPROOF MATERIALS].
D006801:Humans; D006920:Hygiene; D009787:Occupational Medicine; D011009:Pneumoconiosis; D013902:Radiography, Thoracic; D012129:Respiratory Function Tests
INDUSTRIAL MEDICINE; PNEUMOCONIOSIS; RESPIRATORY FUNCTION TESTS; THORACIC RADIOGRAPHY
HYGIENICK'A PROBLEMATIKA V'YROBY  ZIARUVZDORN'YCH L'ATOK