1. College of Chemistry, Jilin University, Changchun 130021, P. R. China
2. Northwest Metabolomics Research Center, Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, Washington 98109, United States
3. Chongqing Blood Center, Chongqing 400015, P. R. China
4. Arizona Metabolomics Laboratory, College of Health Solutions, Arizona State University, Scottsdale, Arizona 85259, United States
5. College of Plant Protection, Southwest University, Chongqing 400715, P. R. China
6. Department of Chemistry, University of Washington, Seattle, Washington 98109, United States
7. Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, United States