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Comparative Study
. 1980 Jul;34(7):414-34.

[Variations in the anamnestic, clinical and lung function data on chronic bronchitis and pulmonary emphysema; an analysis of the results obtained by questionnaire during 1967-1969 and 1972-1975 (author's transl)]

[Article in German]
J Verfürth, U Smidt
  • PMID: 7433418
Comparative Study

[Variations in the anamnestic, clinical and lung function data on chronic bronchitis and pulmonary emphysema; an analysis of the results obtained by questionnaire during 1967-1969 and 1972-1975 (author's transl)]

[Article in German]
J Verfürth et al. Prax Klin Pneumol. 1980 Jul.
No abstract available

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