Prognostic value of osteoprotegerin in heart failure after acute myocardial infarction - Ueland, T; Jemtland, R; Godang, K; Kjekshus, J; Hognestad, A; Omland, T; Squire, I B; Gullestad, L; Bollerslev, J; Dickstein, K; Aukrust, P (J Am Coll Cardiol, 2004)