1. Section of NeurosurgeryDepartment of SurgeryThe University of ChicagoChicagoIllinoisUSA
2. Department of PathologyThe University of ChicagoChicagoIllinoisUSA
3. Department of Pulmonary and Critical Care MedicineRenmin Hospital of Wuhan UniversityWuhanChina
4. Department of MedicineThe University of ChicagoChicagoIllinoisUSA
5. Department of Orthopaedic Surgery and Rehabilitation MedicineThe University of ChicagoChicagoIllinoisUSA