Boland, Michael Acute-onset severe gastrointestinal tract hemorrhage in a postoperative patient taking rivaroxaban after total hip arthroplasty: a case report. [electronic resource] - Journal of medical case reports May 2012 - 129 p. digital Publication Type: Journal Article ISSN: 1752-1947 Standard No.: 10.1186/1752-1947-6-129 doi