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Johns Hopkins Medical Group is a global integrated medical industry group with a total assets of 8 billion US dollars. It organically integrates doctors and researchers from Johns Hopkins University Medical School with Johns Hopkins Hospital and its subsidiaries, medical practitioners and medical facilities in the health system, and becomes the academic health care system in the United States.

Cleveland Medical Center, founded in 1921, is located in Cleveland, Ohio, the United States. It has 3000 doctors, 15000 nurse doctor assistants, and 43000 employees. It ranks second in the United States in general hospitals, second only to the Mayo Clinic, and first in the United States in cardiac/cardiac surgery.

The Affiliated Hospital of Charlotte University is located in Berlin, Germany, with a long history of more than 300 years. The hospital has long enjoyed a high reputation for its outstanding medical treatment, medical research and medical teaching.