1 Division of Rheumatology, Department of Internal Medicine, Patras University Hospital, University of Patras Medical School, 26504 Rion, Patras, Greece. Electronic address: jimdaoussis@hotmail.com.
2 Department of Radiology, Olympion Hospital, Patras, Greece.
3 Department of Neurology, Patras University Hospital, University of Patras Medical School, Patras, Greece.
4 Department of Radiology, Patras University Hospital, Patras, Greece.