1. Department of Emergency MedicineThe Second Xiangya HospitalCentral South UniversityChangshaHunanChina
2. Emergency Medicine and Difficult Diseases InstituteCentral South UniversityChangshaHunanChina
3. Department of OrthopedicsThe Second Xiangya HospitalCentral South UniversityChangshaHunanChina
4. Department of NeonatologyThe Hunan Children's HospitalChangshaHunanChina