Introduction: Baoji Central Hospital is located at No.8 Jiangtan Road, Baoji City, Shaanxi Province. Founded in 195 1 year, covering an area of 170 mu. It is a comprehensive third-class first-class hospital integrating medical treatment, teaching, scientific research, prevention, rehabilitation and health care. It is a national standardized training base for residents, a national drug clinical trial institution, a national clinical pharmacist training base and a national hospital.