This author has not been identified. Look up 'Dongwan Hong' in GoogleThis author has not been identified. Look up 'Jongkeun Lee' in GoogleThis author has not been identified. Look up 'Thomas Bleazard' in GoogleThis author has not been identified. Look up 'Hyunchul Jung' in GoogleThis author has not been identified. Look up 'Young Seok Ju' in GoogleThis author has not been identified. Look up 'Saet-Byeol Yu' in GoogleThis author has not been identified. Look up 'Sujung Kim' in GoogleThis author has not been identified. Look up 'Sung-Soo Park' in GoogleThis author has not been identified. Look up 'Jong Il Kim' in GoogleThis author has not been identified. Look up 'Jeong-Sun Seo' in Google