1. Division of Nutritional Sciences; University of Illinois at Urbana-Champaign; Urbana IL USA
2. Division of Gastroenterology and Hepatology; Department of Medicine; Mayo Clinic; Rochester MN USA
3. Division of Biomedical Statistics and Informatics; Department of Health Sciences Research; Mayo Clinic; Rochester MN USA
4. Clinical Research and Trials Unit; Center for Clinical and Translational Science; Rochester MN USA
5. Microbiome Program; Center for Individualized Medicine; Rochester MN USA
6. Carl R. Woese Institute for Genomic Biology; University of Illinois at Urbana-Champaign; Urbana IL USA