- Correspondence to: Ioannis Poulis Lecturer in Physiotherapy, Department of Physiotherapy, School of Health and Caring Professions, Technological Educational Institute of Lamia, 3rd klm, Old National Road, Lamia–Athens, 351 00, Lamia, Greece;
- Received March 27, 2007
- Accepted March 27, 2007
- Revised March 27, 2007
- First published July 30, 2007.
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