Chinese manuscript Yen Chen ch'ing tzu-t'ieh
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Chinese manuscript Yen Chen ch'ing tzu-t'ieh. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Chinese manuscript Yen Chen ch'ing tzu-t'ieh. Wellcome Collection. Source: Wellcome Collection.