The so-called "Four Heavenly Kings" in the medical field are also called "Peking Union Medical College, South Xiangya, East Qilu and West Huaxi", specifically referring to Peking Union Medical College Hospital, Xiangya Hospital of Central South University, Qilu Hospital of Shandong University and West China Hospital, which are directly affiliated or affiliated hospitals of four medical schools or university medical departments respectively. These four hospitals are super-class third-class first-class hospitals.

In recent years, with the outbreak of epidemic, people have fully realized the importance of doctors in people's lives. They are like angels, guarding our health. Moreover, the profession of doctor is extremely noble in people's minds. With the continuous improvement of the status of doctors, more and more people will choose medical majors when applying for majors.