1. Department of Clinical Therapeutics, “Alexandra” General Hospital , National and Kapodistrian University of Athens , Athens , Greece
2. European Interbalkan Medical Center , Thessaloniki , Greece
3. “Papageorgiou” General Hospital , Thessaloniki , Greece
4. “Theageneio” Anticancer Hospital , Thessaloniki , Greece
5. “Attikon” University General Hospital , Athens , Greece