In recent years, Wansen physical examination has risen, and enterprises are more active. Zero-based candidates can also attend classes, supporting offline downloads, notes and other functions. Dr. Zhang has rich experience in physical examination, a nationwide chain, which was established early and trained a large number of students.

Doctor is a doctor of medicine of Peking Union Medical College, a famous expert in medical education, medical laboratory research and evaluation, and the leader of the lecturer group of dr. zhang Medical Laboratory Center.