title: [Study on occupational health hazards in building Qingzang railway and effectiveness of preventive measures.].
authors.forename: Yong-fu
authors.initials: YF
authors.lastname: Sun
authors.forename: Feng-liu
authors.initials: FL
authors.lastname: Zeng
mesh_terms: D000293:Adolescent; D000328:Adult; D001929:Brain Edema / Q000453:epidemiology; D015386:Hazardous Substances; D006801:Humans; D008297:Male; D008875:Middle Aged; D016272:Occupational Health; D011446:Prospective Studies; D011654:Pulmonary Edema / Q000453:epidemiology; D011890:Railroads; D055815:Young Adult
chemical_list: D015386:Hazardous Substances