Transfer function analysis of the circulation: unique insights into cardiovascular regulationJ. Philip Saul, Richard J. Cohen, Ronald D. Berger et al.|American Journal of Physiology-Heart and Circulatory Physiology|1991Cited by 731
Assessment of autonomic regulation in chronic congestive heart failure by heart rate spectral analysisJ. Philip Saul, Richard J. Cohen, Yutaka Arai et al.|The American Journal of Cardiology|1988Cited by 710
Modulation of cardiac autonomic activity during and immediately after exerciseYasuyuki Arai, Wilson S. Colucci, J. Philip Saul et al.|American Journal of Physiology-Heart and Circulatory Physiology|1989Cited by 703
Cerebral Intravascular Oxygenation Correlates With Mean Arterial Pressure in Critically Ill Premature InfantsMiles Tsuji, Joseph J. Volpe, J. Philip Saul et al.|PEDIATRICS|2000Cited by 570
Beat to beat variability in cardiovascular variables: Noise or music?Marvin L. Appel, Richard J. Cohen, Ronald D. Berger et al.|Journal of the American College of Cardiology|1989Cited by 548