Hearing Cao Binghe's question, Du Heng smiled faintly. "Just ask whatever you want. Is our relationship so formal that you need to be this polite?"
Cao Binghe nodded slightly and then asked softly, "When we worked together last year, I saw you treat other tumor patients and learned about their treatment processes. I've also carefully researched the disease records of several tumor cases you treated in Jinzhou. I'm curious, why is your method completely different this time, even though these are also tumors?"
Du Heng raised an eyebrow. Looking at Cao Binghe with interest, he asked, "How are they different?"
