Thermal hydrotherapy improves quality of life and hemodynamic function in patients with chronic heart failure

Andreas Michalsen , Rainer Lüdtke, Malte Bühring, Günther Spahn, Jost Langhorst, Gustav J Dobos
Am Heart J 2003 Oct;146(4):728-33

https://pubmed.ncbi.nlm.nih.gov/14564334/