title: Occupational health aspects related to coal liquefaction.
mesh_terms: D000818:Animals; D002273:Carcinogens; D002617:Chemical Industry; D003031:Coal; D006801:Humans; D051379:Mice; D009784:Occupational Diseases / Q000517:prevention & control*; D009786:Occupational Health Services; D012306:Risk; D012878:Skin Neoplasms / Q000139:chemically induced / Q000517:prevention & control*
chemical_list: D002273:Carcinogens; D003031:Coal