Baek, Nam Seob [P:(DE-HGF)0] ; Kim, Yong Hee [P:(DE-HGF)0] ; Han, Young Hwan [P:(DE-HGF)0] ; Offenhäusser, Andreas [P:(DE-Juel1)128713] ; Chung, Myung-Ae [P:(DE-HGF)0] ; Jung, Sang-Don [P:(DE-HGF)0]