Crohn’s disease (CD) and ulcerative colitis (UC) are chronic inflammatory bowel diseases (IBD) that often involve organ......

背景：由于克罗恩病（CD）发病率呈逐年上升趋势以及人口老龄化的出现，将可能有更多的老年CD患者。目前对老年CD的临床特点缺乏足够的了解......