1. Novartis Hellas S.A., 12th klm National Road 1, Metamorfosis, 14451 Athens, Greece
2. Foundation for Economic and Industrial Research (IOBE), 11 Tsami Karatatsi Street, 11742 Athens, Greece
3. University Hospital of Ioannina, Stavros Niarchos Avenue, 45500 Ioannina, Greece