Media type: E-Article Title: Monitoring of Physical Activity and Heart Rate Variability in Patients With Chronic Heart Failure Using Cardiac Resynchronization Devices Contributor: Braunschweig, Frieder; Mortensen, Peter T.; Gras, Daniel; Reiser, Wolfgang; Lawo, Thomas; Mansour, Hassan; Sogaard, Peter; Stegemann, Berthold; Bruns, Hans-Jürgen; Linde, Cecilia imprint: Elsevier BV, 2005 Published in: The American Journal of Cardiology Language: English DOI: 10.1016/j.amjcard.2004.12.069 ISSN: 0002-9149 Keywords: Cardiology and Cardiovascular Medicine Origination: Footnote: