1. College of Korean Medicine, Dongshin University, Naju, Korea.
2. Department of Laboratory Medicine, Gwangyang Sarang General Hospital, Gwangyang, Korea.
3. Department of Laboratory Medicine, Chonnam National University Medical School and Chonnam National University Hwasun Hospital, Hwasun, Korea.
4. Brain Korea 21 Plus Project, Chonnam National University Medical School, Gwangju, Korea.
5. Environmental Health Center for Childhood Leukemia and Cancer, Chonnam National University Medical School and Chonnam National University Hwasun Hospital, Hwasun, Korea.