1. Senior Research Assistant.
2. Research Assistant.
3. Resident.
4. Research Assistant and Senior Resident, Department of Anesthesiology, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
5. Professor.
6. Senior Research Assistant, Department of Medicine, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, California.
7. Professor, Department of Anesthesiology, the First Affiliated Hospital, School of Medicine, and State Key Laboratory for Diagnosis and Treatment of Infectious Disease, Zhejiang University.