Ischemic disorders of the intestines.
D000368:Aged; D003092:Colitis / Q000150:complications; D003097:Collateral Circulation; D006801:Humans; D007410:Intestinal Diseases / Q000150:complications / Q000175:diagnosis / Q000628:therapy; D007422:Intestines / Q000098:blood supply*; D007511:Ischemia / Q000150:complications / Q000175:diagnosis / Q000628:therapy; D008875:Middle Aged; D013927:Thrombosis / Q000150:complications