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Last time, Wang Xiaoqiang used Wood Element Spiritual Qi to treat Xu's Mother, achieving only temporary effectiveness. Inevitably, two months later, Xu's Mother suffered a relapse. This showed that the vibrant Wood Element Spiritual Qi could only improve the function of the heart, greatly assisting patients with heart failure, but it was incapable of curing rheumatic heart disease. Hence, Wang Xiaoqiang had to "change the medicine".
