'Wellcome' Insulin : made with pure crystalline insulin : 'Wellcome' Protamine Insulin (with Zinc) - suspension.
- Date:
- [between 1931 and 1939?]
Licence: In copyright
Credit: 'Wellcome' Insulin : made with pure crystalline insulin : 'Wellcome' Protamine Insulin (with Zinc) - suspension. Source: Wellcome Collection.
