1. Department of Rehabilitation, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, Korea.
2. Department of Laboratory Medicine, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, Korea.
3. Green Cross Laboratories, Yongin, Korea.
4. Green Cross Genome, Yongin, Korea.