Akıncı, Ayşehan; Çeliker, Alpay; Baykal, Engin; Teziç, Tahsin
(Pediatric Cardiology, 2017)
Heart rate variability (HRV) is a noninvasive index of the neural activity of the
heart. Although also influenced by the sympathetic activity of the heart, HRV is essentially
determined by the vagal stimulation of the ...