1. Department of Radiology and Biomedical Imaging, University of California at San Francisco, San Francisco, California, USA.
2. Dipartimento di Matematica, Universita’ di Bologna, Bologna, Italy.
3. Department of Neurology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seodaemun-gu, Republic of Korea.
4. Department of Nuclear Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seodaemun-gu, Republic of Korea.
5. Division of Applied RI, Korea Institute of Radiological and Medical Sciences, Seoul, Republic of Korea.