1. Program of Speech and Language Pathology, Department of Biobehavioral Sciences, Teachers College, Columbia University, New York, USA
2. Step-down Intensive Care Unit, University Hospital Evangelismos, Athens, Greece
3. Department of Speech and Language Therapy, Technological Educational Institute of Patras, Greece
4. Hamilton Plaza Nursing and Rehabilitation Center, New Jersey, USA
5. Department of Radiology, University Hospital Evangelismos, Athens, Greece
6. Athens Medical School, National and Kapodistrian University of Athens, Greece and Evangelismos Hospital, Athens, Greece