title: Nonlinear measures of heart rate variability after fentanyl-based induction of anesthesia.
mesh_terms: D000465:Algorithms; D000771:Anesthesia, Intravenous; D018686:Anesthetics, Intravenous / Q000008:administration & dosage*; D004562:Electrocardiography / Q000187:drug effects*; D005283:Fentanyl / Q000008:administration & dosage*; D005583:Fourier Analysis; D006339:Heart Rate / Q000187:drug effects*; D006801:Humans; D016013:Likelihood Functions; D010363:Pattern Recognition, Automated; D012815:Signal Processing, Computer-Assisted
chemical_list: D018686:Anesthetics, Intravenous; D005283:Fentanyl