%0 Conference Paper %B Computers in Cardiology %D 2014 %T Assessment of Dynamic Autonomic Changes with Posture using Instantaneous Entropy Measures %A G. Valenza %A L. Citi %A E. P. Scilingo %A R. Barbieri %K Bioengineering %B Computers in Cardiology %C Cambridge (MA, USA) %V 41 %P 489-492