O. Loewi and Hammilton, (from colour
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: O. Loewi and Hammilton, (from colour. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: O. Loewi and Hammilton, (from colour. Wellcome Collection. Source: Wellcome Collection.