1. Department of Secondary Special Education, College of Education, Jeonju University, P.O. Box 560-759, 45 Baengma-gil, Wansan-gu, Jeonju, Republic of Korea
2. Department of Occupational Therapy, School of Medicine & Institute for Health Improvement, Wonkwang University, P.O. Box 54538, 460 Iksandae-ro, Iksan, Jeollabuk-do, Republic of Korea
3. Department of Clinical Nursing, College of Nursing, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 06591, Republic of Korea