Janssen,Jan

Institution: University of Witten/Herdecke, Germany

Research Interests: After Treatment, Aspiration Biopsy, Biopsy, Disease, Elastography, Endoscopic Ultrasonography, Endoscopy, Evaluation, Fine-needle Aspiration, Fine-needle Aspiration Biopsy, Helicobacter, Helicobacter Pylori, High-grade Lymphoma, Infection, Low-grade Lymphoma, Lymphoid Tissue, Lymphoma, Lymphomas, Mucosa, Needle