Patient medians for NT-proBNP from six Swedish counties 2011–2021​Morgan Lundgren Peter Ridefelt Maria K. Eriksson Thomas Cars Anders Larsson a Department of Medical Sciences, Clinical Chemistry, Uppsala University, Uppsala, Swedenb Department of Medical Sciences, Renal Medicine, Uppsala University, Uppsala, Swedenc Uppsala Clinical Research Centre, Uppsala, Swedend Sence Research AB, Uppsala, Swedenon July 4, 2025 at 12:40 pm