title: [Björk-Shiley artificial heart valves. Risk estimation points mostly against reoperation. A method for prediction of strut fracture needed].
authors.forename: A
authors.initials: A
authors.lastname: Nystrand
mesh_terms: D006350:Heart Valve Prosthesis / Q000009:adverse effects / Q000401:mortality; D006801:Humans; D011474:Prosthesis Design / Q000592:standards; D011475:Prosthesis Failure; D012086:Reoperation; D012307:Risk Factors; D013548:Sweden; D014481:United States
vernacular_title: Björk-Shiley-hjärtklaffarna. Riskkalkyl talar oftast emot reoperation. Metod att förutsäga bygelbrott söks.