《黄帝内经·灵枢·经脉》
对于以上这些病证，治疗时，可取本经别出的大包穴。以上这十五络脉，邪气盛实则血液充满脉中明显易见，正气虚则络脉必陷下而看不见。
凡此十五络者，实则必见，虚则必下。
When treating these types of disease evidence mentioned above, one can choose the Dabao acupoint, which is a collateral branch of this meridian. Among the fifteen collaterals mentioned above, if evil qi is abundant and substantial, the blood will fill the veins, which will be obvious and easy to see. If righteous qi is empty, the collaterals will definitely become depressed and will not be visible.