| URN | urn:nbn:de:101:1-2021122508170953056141 |
|---|---|
| Responsible organisation | Deutsche Nationalbibliothek, Automatisierte URN-Vergabe 60322 Frankfurt am Main |
| Created / last modified | 2021-12-25T07:17:11Z 2021-12-25T07:17:11Z |
| Registered URLs |
|---|
| https://doi.org/10.1186/s12890-021-01677-2 |
| https://d-nb.info/1248410653/34 |
Please contact the responsible organisation if you experience any errors with the URLs.
