Monaural stethoscope; bell shaped.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Monaural stethoscope; bell shaped. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Monaural stethoscope; bell shaped. Wellcome Collection. Source: Wellcome Collection.