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Occurrence of percutaneous endoscopic gastrostomy (PEG) infection dependent on institution: hospital A (Department of Medicine) versus hospital B (Department of Otolaryngology); size of PEG tube (9 Fr versus 15 Fr); underlying disease (malignant versus benign) and endoscopist experience (trainee: <100 endoscopies performed; advanced: >100 endoscopies performed)
