man playing guitar with granddaughter
About the Author

William E. Karnes, MD

Dr. William E. Karnes is a UCI Health gastroenterologist who specializes in disorders of the gastrointestinal tract, including colorectal cancer screening, gastrointestinal reflux disease (GERD), swallowing disorders, irritable bowel syndrome, peptic ulcers and esophageal disorders.

He also conducts translational research on colon cancer prevention with an emphasis on regular colorectal screening, especially among patients and families with a genetic risk for developing the disease

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