1. Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine; National Taiwan University; Taipei 10048 Taiwan China
2. Department of Diabetes Complications and Metabolism; Diabetes and Metabolism Research Institute, Beckman Research Institute, City of Hope; Duarte CA 91010 USA
3. Irell and Manella Graduate School of Biological Sciences; City of Hope; Duarte CA 91010 USA