Accepted for Publication: October 29, 2014.
Published Online: January 12, 2015. doi:10.1001/jamaneurol.2014.3958.
Study concept and design: Y.-S. Lee.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: Lim, Y.-S. Lee.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Lim, Hong, Y.-S. Lee.
Obtained funding: Y.-S. Lee.
Administrative, technical, or material support: Kim, Bae, Kwon, S.-H. Lee, Rha, Koo, Yu, Seo, K. B. Lee, Y.-S. Lee.
Study supervision: Hong, Kim, Bang, Bae, Park, Rha, Y.-S. Lee.
Conflict of Interest Disclosures: None reported.
Funding/Support: This study was supported by grants RES10-RF136, 800-20100046, and 800-20100055 from the Seoul National University Research and Development Business Foundation.
Role of the Funder/Sponsor: The funding source had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and the decision to submit the manuscript for publication.
Additional Contribution: Soo Chin Kim, MD, Department of Radiology, Seoul National University Boramae Medical Center, analyzed the neuroimaging data. Dr Kim did not receive financial compensation.