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Mayo Medical School, Mayo Clinic, Rochester, MN
Public Health, Johns Hopkins University, School of Hygiene and Public Health, Baltimore, MD
Mayo Graduate School of Medicine, Mayo Clinic, Rochester, MN
Cancer Prevention, National Cancer Institute, Bethesda, MD
Gastroenterology, Mayo Graduate School of Medicine, Mayo Clinic, Rochester, MN
Professor of Medicine
See a listing of publications on PubMed, a service of the National Library of Medicine.
See a description of research activities.

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