Postdoctoral fellow. The eight-year clinical medicine major of the Fourth Military Medical University is a master-doctor program. After graduation, you can get a doctorate or a postdoctoral fellow. Postdoctoral degree refers to the academic qualification of engaging in scientific research for a certain period in institutions of higher learning or research institutions after obtaining a doctorate. The PLA Air Force Military Medical University, the Fourth Military Medical University, is a national key university to train senior and intermediate medical professionals.