Institution: | 1. Department of Surgery, Medical School, Attikon General Hospital, University of Athens, Athens, Greece 2. Department of Surgery, Medical School, Laikon General Hospital, University of Athens, Athens, Greece 3. Department of Vascular Surgery, Medical School, Attikon General Hospital, University of Athens, Athens, Greece 4. Department of Propaedeutic Surgery, Medical School, Laiko General Hospital, University of Athens, Athens, Greece
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