Limited value of NT-proBNP as a prognostic marker of all-cause mortality in patients with heart failure with preserved and mid-range ejection fraction in primary care: A report from the swedish heart failure register. - Eriksson, Björn; Wändell, Per; Dahlström, Ulf; Näsman, Per; Lund, Lars H.; Edner, Magnus (Scandinavian Journal of Primary Health Care, 2019)