1. Department of Anatomy, Histology and Embryology; Yanbian University Medical College; Yanji City Jilin Province China
2. Department of Neurology; Wonkwang University School of Medicine and Hospital; Iksan-si Republic of Korea
3. Department of Rehabilitation, Division of Physical Therapy; Ongoul Rehabilitation Hospital; Jeonju-si Republic of Korea
4. Department of Internal Medicine, Division of Internal Medicine; Iwamizawa Kojin-kai Hospital; Iwamizawa 068-0833 Japan
5. Department of Anatomy and Human Embryology; Institute of Embryology, Faculty of Medicine, Complutense University; Madrid Spain
6. Department of Anatomy; Tokyo Dental College; Tokyo Japan