title: Methodology of an epidemiological survey in the iron-ore mines of Lorraine. Research into the long-term effect of potentially irritant gases on the pulmonary system.
mesh_terms: D000328:Adult; D004781:Environmental Exposure; D004812:Epidemiologic Methods; D005602:France; D005739:Gas Poisoning; D006801:Humans; D007501:Iron; D008297:Male; D008875:Middle Aged; D008906:Mining; D009784:Occupational Diseases / Q000139:chemically induced*; D011009:Pneumoconiosis / Q000453:epidemiology*
chemical_list: D007501:Iron