1. Department of Anatomy and Institute of Medical Science, Chonbuk National University Medical School, Jeonju, Korea.
2. Department of Neurology, Wonkwang University School of Medicine and Hospital, Institute of Wonkwang Medical Science, Iksan, Korea.
3. Department of Anatomy, Wuxi Medical School, Jiangnan University, Wuxi, China.
4. Division of Internal Medicine, Asuka Hospital, Sapporo, Japan.
5. Department of Anatomy, Akita University School of Medicine, Akita, Japan.