Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.|Department of Computational Medicine & Bioinformatics, Ann Arbor, MI, USA.|Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA.|Michigan Regional Comprehensive Metabolomics Resource Core, Ann Arbor, MI, USA.|Department of Medicine, Translational-Clinical Research, University of Pennsylvania, Philadelphia, PA, USA.|Department of Family Medicine and Public Health, University of California at San Diego, San Diego, CA, USA.|Department of Internal Medicine, University of Texas Health at San Antonio, San Antonio, TX, USA.|Department of Internal Medicine, University of Illinois at Chicago, Chicago, IL, USA.|Department of Internal Medicine, Case-Western Reserve University, Cleveland, OH, USA.|Department of Epidemiology, Tulane University School of Medicine, Tulane University, New Orleans, LA, USA.|School of Medicine, Division of Nephrology and Hypertension, Tulane University, New Orleans, LA, USA.|Department of Internal Medicine, Johns Hopkins University, Baltimore, MD, USA.|Department of Pediatrics, University of Michigan, Ann Arbor, MI, USA.|Department of Internal Medicine, Temple University, Philadelphia, PA, USA.|Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Philadelphia, PA, USA.|Michigan Regional Comprehensive Metabolomics Resource Core, Ann Arbor, MI, USA.|Michigan Regional Comprehensive Metabolomics Resource Core, Ann Arbor, MI, USA.