title: Prevent disaster--take a history.
mesh_terms: D001807:Blood Vessel Prosthesis / Q000009:adverse effects; D006350:Heart Valve Prosthesis / Q000009:adverse effects; D006801:Humans; D011187:Posture; D012306:Risk; D013927:Thrombosis / Q000517:prevention & control*; D014656:Vascular Surgical Procedures