Acumoxa chart: Location of dazhui, feishu and ganshu points
Licence: Public Domain Mark
Credit: Acumoxa chart: Location of dazhui, feishu and ganshu points. Wellcome Collection. Source: Wellcome Collection.
Licence: Public Domain Mark
Credit: Acumoxa chart: Location of dazhui, feishu and ganshu points. Wellcome Collection. Source: Wellcome Collection.