1. Institute of Biochemistry and Biotechnology, College of Medicine, Chung Shan Medical University, No. 110, Sec. 1, Chien Kuao N. Road, Taichung, 402 Taiwan; Departments of Pathology and Laboratory, Chung Shan Medical University Hospital, Taichung, Taiwan; and School of Applied Chemistry, College of Health Management, Chung Shan Medical University, No. 110, Sec. 1, Chien Kuao N. Road, Taichung, 402 Taiwan