1. Department
of Oral and Maxillofacial Surgery, School of Stomatology, Dalian Medical University, Liaoning 116001, China
2. Department
of Biological Engineering and College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi 39762, United States
3. Department
of Operation Room, The First Affiliated Hospital, Dalian Medical University, Liaoning 116001, China
4. Comprehensive
Transplant Center and Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, United States