This author has not been identified. Look up 'Joonghyun Ji' in GoogleThis author has not been identified. Look up 'Kangwook Kim' in GoogleThis author has not been identified. Look up 'Minkook Seo' in GoogleThis author has not been identified. Look up 'Taeyoung Kim' in GoogleThis author has not been identified. Look up 'Dongmin Park' in GoogleThis author has not been identified. Look up 'YongHwan Kim' in GoogleThis author has not been identified. Look up 'Kwang Hee Ko' in Google