title: Mortality experience of 50 workers with occupational exposures to the products of coal hydrogenation processes.
mesh_terms: D000328:Adult; D000368:Aged; D003033:Coal Tar / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009026:Mortality; D009369:Neoplasms / Q000139:chemically induced; D009784:Occupational Diseases / Q000139:chemically induced*; D011083:Polycyclic Compounds / Q000009:adverse effects*; D011230:Precancerous Conditions / Q000139:chemically induced*; D012116:Resins, Plant / Q000633:toxicity*; D012878:Skin Neoplasms / Q000139:chemically induced*
chemical_list: D011083:Polycyclic Compounds; D012116:Resins, Plant; D003033:Coal Tar