Core temperature variation is associated with heart rate variability independent of cardiac index: a study of 278 trauma patients.
Mowery NT, Morris JA, Jenkins JM, Ozdas A, Norris PR. Core temperature variation is associated with heart rate variability independent of cardiac index: a study of 278 trauma patients. J Crit Care. 2011 Oct; 26(5):534.e9-534.e17.