[Study of temporary disability in prolonged and frequent illness].
D000328:Adult; D004185:Disability Evaluation; D006801:Humans; D008499:Medical Records; D008875:Middle Aged; D009784:Occupational Diseases / Q000453:epidemiology*; D009787:Occupational Medicine; D012800:Siberia
Ob opyte izucheniia vremennoĭ netrudosposobnosti dlitel'no i chasto boleiushchikh.