1. Department of Anesthesiology, Nanan District People’s Hospital of Chongqing, Chongqing, China
2. Department of Breast and Thyroid Surgery, Chongqing Bishan District Maternal and Child Health Care Hospital, Chongqing, China
3. Medical Imaging Department, Chongqing University Central Hospital (Chongqing Emergency Medical Center), Chongqing, China