Differentiation between Colonic Inverted Diverticulum and Polyp in the Elderly: A Report of Two Cases with a Literature Review
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                        DOI: 10.6890/IJGE.202307_17(3).0012
                    
					
					
					
				Safety and Effectiveness of Endoscopic Ultrasound-Guided Fine Needle Biopsy for Retroperitoneal and Gastrointestinal Tumors in Elderly Patients
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                        DOI: 10.6890/IJGE.202207_16(3).0016