Regression of pulmonary radiological changes in dockyard welders after cessation or decrease of exposure to welding fumes.
D000328:Adult; D004781:Environmental Exposure; D005500:Follow-Up Studies; D006801:Humans; D011859:Radiography; D012806:Siderosis / Q000000981:diagnostic imaging*; D012829:Silicosis / Q000000981:diagnostic imaging*; D013147:Spirometry; D014896:Welding