1. Department of Chemical Engineering, National Technical University of Athens, 9 Iroon Polytechniou Str, 15780 Zografou Athens, Greece
2. Department of Orthopaedics, LAIKO General Hospital of Athens, 17 St. Thomas Str, 11527 Athens, Greece
3. First Department of Propedeutic Medicine, Athens University School of Medicine, LAIKO General Hospital of Athens, 17 St. Thomas Str, 11527 Athens, Greece