Original scientific paper
Correlations between absenteeism and symptoms and signs of chronic bronchitis
G. Worth
; Bethanien Hospital for the County of Moers, Moer,. F. R. Germany
U. Smidt
; Bethanien Hospital for the County of Moers, Moer,. F. R. Germany
G. Schwarz
; Bethanien Hospital for the County of Moers, Moer,. F. R. Germany
Abstract
Keywords
Hrčak ID:
205039
URI
Publication date:
25.9.1979.
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