1. Postdoctoral Research Fellow, Department of Anesthesia, Critical Care, and Pain Medicine and Center for Human Genetic Research, Massachusetts General Hospital, Harvard Medical School and Scholar in Science, Broad Institute of MIT and Harvard, Boston, Massachusetts.
2. Speech-Language Pathologist, Department of Speech, Language and Swallowing Disorders
3. Postdoctoral Research Fellow, Department of Anesthesia, Critical Care, and Pain Medicine
4. Physical Therapist, Department of Physical and Occupational Therapy Services, Massachusetts General Hospital, Boston, Massachusetts.
5. Associate Professor of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital, and Harvard Medical School, Boston, Massachusetts.
6. Pulmonary and Critical Care Fellow, Department of Medicine, Pulmonary and Critical Care Unit
7. Director of Research, Critical Care Division, Massachusetts General Hospital and Associate Professor, Harvard Medical School, and Associate Professor, Universitaet Duisburg Essen, Essen, Germany.