《黄帝内经·灵枢·岁露论》
岐伯说：因风邪常停留在肌表组织之间，卫阳之气不时地与之交争相搏，所以证候表现呈持续性；而疟疾病邪能随经络深入，搏结于内，所以只有卫气行至疟邪所在之处引起抗御病邪的反应时，疾病才会发作。黄帝说：讲得很好。
岐伯曰：风气留其处，疟气随经络，沉以内搏，故卫气应乃作也。帝曰：善。
Qibo said: Because the wind-evil often stays between the muscle and tissue, the yang qi of the defensive qi fights with it from time to time, so the symptoms are continuous; while the pathogenic qi of malaria can follow the meridians deep into the body and struggle within, so the disease occurs only when the defensive qi travels to the location of the malaria evil and causes a reaction against the evil. The Yellow Emperor said: Well said.