Dr. O. Bollinger, Atlas and essentials of ph
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Dr. O. Bollinger, Atlas and essentials of ph. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Dr. O. Bollinger, Atlas and essentials of ph. Wellcome Collection. Source: Wellcome Collection.