Stethoscopes introduced by Billings
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Stethoscopes introduced by Billings. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Stethoscopes introduced by Billings. Wellcome Collection. Source: Wellcome Collection.