1. Heartbeat Synchronizes With Respiratory Rhythm Only Under Specific Circumstances 
Evgeny Vaschillo, PhD, Bronya Vaschillo, PhD, Paul Lehrer, PhD 
CHEST 
Volume 126, Issue 4, Pages (October 2004)
DOI: /S (15)
Copyright © 2004 The American College of Chest Physicians Terms and Conditions

2. Figure 1
Transfer function of respiration (input) to heart rate (output). Values given as the mean of eight subjects.
CHEST  , DOI: ( /S (15) )
Copyright © 2004 The American College of Chest Physicians Terms and Conditions