The hazards to health in the hydrogenation of coal. 3. The industrial hygiene studies.
D002273:Carcinogens / Q000737:chemistry*; D003031:Coal; D006262:Health; D006801:Humans; D006865:Hydrogenation; D016272:Occupational Health; D009787:Occupational Medicine
D002273:Carcinogens; D003031:Coal
CARCINOGENS/chemistry; INDUSTRIAL MEDICINE