Dental caries in relation to oral osmosis / by Ragnar Eckermann.
- Eckermann, Ragnar.
- Date:
- 1919
Licence: Public Domain Mark
Credit: Dental caries in relation to oral osmosis / by Ragnar Eckermann. Source: Wellcome Collection.
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Licence: Public Domain Mark
Credit: Dental caries in relation to oral osmosis / by Ragnar Eckermann. Source: Wellcome Collection.