What is the relationship between Beijing North Hospital and the Third Hospital of Beijing Medical University?

There are many patients in the Third Hospital of Beijing Medical University, and the area of the headquarters is not enough. Therefore, some floors of Beijing Medical University are rented, such as some wards in hematology and rehabilitation. But the doctors in these departments are all doctors in the Third Hospital of Beijing Medical University. The outpatient department of Beijing Medical University is still its own doctor, not a doctor in the Third Hospital of Beijing Medical University.

In fact, these two hospitals are independent units.