[1] Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Heart Vasc & Stroke Inst,Ctr Cardiovasc & Stroke, Seoul, South Korea
[2] Sungkyunkwan Univ, Sch Med, Samsung Med Ctr,Dept Phys & Rehabil Med, Ctr Prevent & Rehabil,Heart Vasc & Stroke Inst, Seoul, South Korea
[3] Chungnam Natl Univ, Dept Rehabil Med, Sch Med, Taejon, South Korea
[4] Konkuk Univ, Dept Rehabil Med, Sch Med, Seoul, South Korea
[5] Yonsei Univ, Coll Med, Dept & Res Inst Rehabil Med, Seoul, South Korea
[6] Chonnam Natl Univ, Dept Phys & Rehabil Med, Sch Med, Kwangju, South Korea
[7] Pusan Natl Univ, Dept Rehabil Med, Sch Med, Pusan 609735, South Korea
[8] Wonkwang Univ, Coll Med, Dept Publ Hlth & Prevent Med, Jeonju, South Korea
[9] Kyung Pook Natl Univ, Dept Rehabil Med, Coll Med, Taegu, South Korea
[10] Wonkwang Univ, Dept Rehabil Med, Coll Med, Jeonju, South Korea
[11] Univ Jeju, Coll Med, Jeju Univ Hosp, Dept Rehabil Med, Cheju, South Korea
[12] Korea Ctr Dis Control & Prevent, Osong, South Korea