[Acoustical studies of lung crackles in asbestos workers].
D000328:Adult; D001195:Asbestosis / Q000000981:diagnostic imaging / Q000503:physiopathology*; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging; D008875:Middle Aged; D008991:Monitoring, Physiologic; D011859:Radiography; D012135:Respiratory Sounds