- Correspondence to Inah Kim, Occupational and Environmental Medicine, College of Medicine, Hanyang University, Seoul 04763, Republic of Korea; ; Professor Seung Hyun Kim, Department of Neurology, College of Medicine, Hanyang University, Seoul 04763, Korea;
- Received June 8, 2018
- Revised September 21, 2018
- Accepted October 1, 2018
- First published November 8, 2018.
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