1. Department of Nuclear Medicine, Chosun University Hospital, School of Medicine, Chosun University, Gwangju, Korea.
2. Department of Nuclear Medicine, Chonnam National University Hospital, Gwangju, Korea.
3. Department of Nuclear Medicine, Chonnam National University Hwasun Hospital, Hwasun, Korea.
4. Department of Neurosurgery, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea.