In a similar training class in this residential building, mysterious experts will come to give needles to the children around 3 pm every day. The reporter learned from the patient's family that this mysterious expert is Dr. Dong Changxian from Henan Provincial People's Hospital.

I did see this Dong Changxian in the expert registration of Henan Provincial People's Hospital. It's a great honor. He is not only the director and doctor of hemangioma department, but also the tutor of doctoral students and master students.