1. Program of Innovative Therapeutics First Affiliated Hospital; Zhejiang University; Hangzhou 310003 China
2. Institute of Bioengineering and Nanotechnology; Singapore 138669 Singapore
3. State Key Laboratory for Diagnosis and Treatment of Infectious Diseases; First Affiliated Hospital Zhejiang University; Hangzhou 310003 China
4. Department of Biomedical Sciences; School of Medicine and Health Sciences; University of North Dakota; Grand Forks ND 58203 USA
5. IBM Almaden Research Center; San Jose CA 95120 USA