Vitamin B1 therapy with 'Betaxan' / Bayer Products Limited.
- Bayer Products Limited.
- Date:
- [1938]
Licence: Public Domain Mark
Credit: Vitamin B1 therapy with 'Betaxan' / Bayer Products Limited. Source: Wellcome Collection.
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Licence: Public Domain Mark
Credit: Vitamin B1 therapy with 'Betaxan' / Bayer Products Limited. Source: Wellcome Collection.