1. Research Fellow, Geriatric Anesthesia Research Unit, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts; Associate Professor, Department of Anesthesiology, Beijing Chest Hospital, Capital Medical University, Beijing, People’s Republic of China.
2. Senior Research Technologist.
3. Research Fellow.
4. Associate Professor, Department of Anesthesia, Brigham & Women’s Hospital and Harvard Medical School, Boston, Massachusetts.
5. Associate Professor, Geriatric Anesthesia Research Unit.