1. Department of SurgeryEmory Critical Care CenterAtlantaGeorgiaUSA
2. Department of Critical Care MedicinePeople's Hospital of Zhengzhou University–Henan Provincial People's HospitalZhengzhouChina
3. Department of Critical Care MedicineThe First Affiliated Hospital of China Medical UniversityShenyangChina
4. Department of PathologyLaboratory MedicineEmory University School of MedicineAtlantaGeorgiaUSA
5. Department of SurgeryEmory Transplant CenterEmory University School of MedicineAtlantaGeorgiaUSA