1. Department of Nuclear Medicine, Daegu Catholic University Medical Center, Catholic University of Daegu School of Medicine, Daegu, Republic of Korea.
2. Department of Immunology, Keimyung University School of Medicine, Daegu, Republic of Korea.
3. Department of Nuclear Medicine, Keimyung University Dongsan Hospital, Keimyung University School of Medicine, Daegu, Republic of Korea.
4. Department of Neurology, Keimyung University Dongsan Hospital, Keimyung University School of Medicine, Daegu, Republic of Korea.