1. Sungshin Women's University, Department of Psychology, Seoul, Korea
2. Stanford University, Department of Psychiatry, Palo Alto, CA
3. University of California San Francisco, Department of Radiology and Biomedical Imaging, San Francisco, CA
4. Center for Studies in Behavioral Neurobiology, PERFORM Center & Department of Exercise Science, Concordia University, Montreal, Canada
5. Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal & Department of Neurosciences, University of Montreal, Montreal, Canada
6. Samsung Medical Center, Department of Neurology, Sungkyunkwan University School of Medicine, Seoul, Korea