1. Research Institute of Labeling; FutureChem Co. Ltd.; 388-1 Pungnap-2-dong, Songpagu Seoul 138-736 Korea
2. Department of Chemistry; Sogang University; 35 Baekbeomro Mapogu Seoul 121-742 Korea
3. Department of Nuclear Medicine, Asan Medical Center; University of Ulsan College of Medicine; 388-1 Pungnap-2-dong Songpagu Seoul 138-736 Korea