More on aortic stenosis and gastrointestinal bleeding.
D000368:Aged; D001024:Aortic Valve Stenosis / Q000150:complications* / Q000601:surgery; D006471:Gastrointestinal Hemorrhage / Q000209:etiology* / Q000517:prevention & control; D006350:Heart Valve Prosthesis; D006801:Humans; D008297:Male; D013270:Stomach / Q000098:blood supply; D014652:Vascular Diseases / Q000150:complications