1. Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
2. Department of Laboratory Medicine, Linsen, Chinese Medicine and Kunming Branch, Taipei City Hospital, No 100, Kunming Street, Taipei 10844, Taiwan
3. Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, No 161, Sec 6, Minquan E. Road, Taipei 11490, Taiwan
4. Institute of Biological Chemistry, Academia Sinica, 128 Academia Road Sec 2, Nankang, Taipei 115, Taiwan
5. Department of Biotechnology and Animal Science, National Ilan University, No 1 Sec 1 Shennong Road, Yilan County 260, Taiwan
6. Department of Medical Research, China Medical University Hospital, China Medical University, No 91, Hsueh-Shih Road, Taichung 40402, Taiwan