title: Follow-up study on the lung retention of welding fumes among shipyard welders.
mesh_terms: D000328:Adult; D000367:Age Factors; D000395:Air Pollutants, Occupational / Q000378:metabolism*; D005500:Follow-Up Studies; D006801:Humans; D008168:Lung / Q000378:metabolism*; D008875:Middle Aged; D013997:Time Factors; D014896:Welding
chemical_list: D000395:Air Pollutants, Occupational