1. Department of Neurology, Seoul Hospital Ewha Womans University College of Medicine Seoul Republic of Korea
2. Department of Pediatrics Yonsei University College of Medicine Seoul Republic of Korea
3. Department of Cardiology, Seoul Hospital Ewha Womans University College of Medicine Seoul Republic of Korea
4. Department of Neurology, Yongin Severance Hospital Yonsei University College of Medicine Yongin‐si Republic of Korea