Chinese manuscript Yen-k'o ta-ch'uan.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Chinese manuscript Yen-k'o ta-ch'uan. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Chinese manuscript Yen-k'o ta-ch'uan. Wellcome Collection. Source: Wellcome Collection.