NCT01946711
- Conditions
- Chronic Polyposis, Infections, Nose Diseases, +7 more
- Locations
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- University Göttingen Göttingen, Germany
- UNIVERSITÄTSMEDIZIN der Johannes Gutenberg-Universität Mainz Mainz, Germany
- University LMU Munich Munich, Germany
- HNO-Zentrum Mangfall-Inn Rosenheim, Germany