A brief response to Dr. Schimmel's reply.
Van Dongen
H P
HP
Unit for Experimental Psychiatry, University of Pennsylvania School of Medicine, PA, USA. vdongen@mail.med.upenn.edu
Ruf
T
T
Olofsen
E
E
VanHartevelt
J H
JH
Kruyt
E W
EW
D002940:Circadian Rhythm; D003627:Data Interpretation, Statistical; D016018:Least-Squares Analysis; D010507:Periodicity