This author has not been identified. Look up 'Kyeong-Sang Lee' in GoogleThis author has not been identified. Look up 'Donghyun Jin' in GoogleThis author has not been identified. Look up 'Jong-Min Yeom' in GoogleThis author has not been identified. Look up 'Minji Seo' in GoogleThis author has not been identified. Look up 'Sungwon Choi' in GoogleThis author has not been identified. Look up 'Jae-Jin Kim' in GoogleThis author has not been identified. Look up 'Kyung-Soo Han' in Google