Channel pulses of the Twelve Channels, Chinese woodcut
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Channel pulses of the Twelve Channels, Chinese woodcut. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Channel pulses of the Twelve Channels, Chinese woodcut. Wellcome Collection. Source: Wellcome Collection.