ArticleDeutsches Arzteblatt international2017
Not a Population-Based Survey.
Helmut Kleinwechter et al.PubMed ↗Full text ↗Publisher ↗
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ArticleDeutsches Arzteblatt international2017
Helmut Kleinwechter et al.PubMed ↗Full text ↗Publisher ↗
No numbers read from the abstract.