[1] Univ Ulsan, Ulsan Univ Hosp, Dept Phys Med & Rehabil, Coll Med, Ulsan, South Korea
[2] Univ Ulsan, Dept Rehabil Med, Asan Med Ctr, Coll Med, 88 Olymp Ro Gil, Ulsan 05505, South Korea
[3] Asan Merkel Ctr, Dept Rehabil Med, Seoul, South Korea
[4] Catholic Univ Korea, Incheon St Marys Hosp, Coll Med, Dept Rehabil, Incheon, South Korea
[5] Gamcheon Champyonhan Geriatr Hosp, Dept Rehabil Med, Pusan, South Korea