title: Frequency and causes of long-term disability among Metropolitan employees.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009017:Morbidity; D009790:Occupations; D012737:Sex Factors; D013997:Time Factors; D014481:United States