[1
]
Nuclear Medicine Department, University Hospital of Larissa, Thessaly, Greece.
[2
]
Nuclear Medicine Department, "Alexandra" General Hospital, Athens, Greece.
[3
]
3rd Age Day Care Center, IASIS, Athens, Greece.
[4
]
1st University Psychiatric Department, Aeginition Hospital, Athens, Greece.
[5
]
Neurology Department, Evrokliniki, Athens, Greece.
[6
]
Medical Physics Department, Medical School, University of Thessaly, Thessaly, Greece.
[7
]
2nd University Department of Neurology, Attikon Hospital, Athens, Greece.
[8
]
Memory Disorders Clinic, Medical Center, Athens, Greece.