Johann Ockenga
- Location: Germany, Bremen
Dr. Johann Ockenga brings of expertise in surgical oncology and gastrointestinal surgery, specializing in colon cancer at Bremen-Mitte Clinic.
- Specializes in treating sigmoid adenocarcinoma and hepatocellular carcinoma
- Secretary of the German Society of Nutritional Medicine
- Developed guidelines for nutritional medicine
- Contributed to the World Journal of Gastroenterology
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