RT Journal Article SR Electronic T1 Balancing the risk of chronic gastrointestinal bleeding and thromboembolic events in a patient with a metallic aortic valve JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 461 OP 462 DO 10.7861/clinmedicine.8-4-461 VO 8 IS 4 A1 Victoria Watts A1 Alex Ford A1 Alex Brown A1 S Moreea YR 2008 UL http://www.rcpjournals.org/content/8/4/461.abstract AB Evidence shows clear benefit of anticoagulation for prosthetic heart valves but consideration must be given to coexisting medical conditions.