Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Piorry type monaural stethoscope, Europe, 1830-1880. Science Museum, London. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Piorry type monaural stethoscope, Europe, 1830-1880. Science Museum, London. Source: Wellcome Collection.