title: Proficiency, procedures, and "B" readers-classifications of radiographs for pneumoconiosis.
authors.forename: Michael
authors.initials: M
authors.lastname: Attfield
authors.forename: Lee
authors.initials: L
authors.lastname: Petsonk
mesh_terms: D002983:Clinical Competence; D006801:Humans; D009314:National Institute for Occupational Safety and Health, U.S.; D009787:Occupational Medicine / Q000592:standards; D011009:Pneumoconiosis / Q000000981:diagnostic imaging*; D013902:Radiography, Thoracic / Q000145:classification* / Q000592:standards; D012015:Reference Standards; D014481:United States