This author has not been identified. Look up 'Ju-Hwan Kim' in GoogleThis author has not been identified. Look up 'Ji-Eun Woo' in GoogleThis author has not been identified. Look up 'Soo-Jin Kim' in GoogleThis author has not been identified. Look up 'So-Yeon Park' in GoogleThis author has not been identified. Look up 'Dong-Guk Han' in Google