1Task Force of the European Society of Cardiology and the North American Society of Pacing and Electrophysiology.Heart rate variability standards measurement,physiological interpretation and clinical us[J].Circulation,1996,93:1043-1065
4Rang S,Wolf H,Von Montfrans G,et al.Non-invasive assessment of autonomic cardiovascular control in normal human pregnancy and pregnancy associated hypertensive disorders:a review[J].J Hypertens,2002,20:2111-2119
5Pagani M.Heart rate variability and pregnancy[J].Hypertens,2002,20(11):2125-2126
1K. Kawahara,Y. Yamauchi. Spectral analysis on fluctuation of heat period in paralyzed, vagotomized, and unanesthetized decerebrate cats[J] 1990,Biological Cybernetics(4):251～256
2V. L. Schechtman,K. A. Kluge,R. M. Harper. Time-domain system for assessing variation in heart rate[J] 1988,Medical & Biological Engineering & Computing(4):367～373
4[5]Rang S, Wolf H, Von Montfrans G, et al. Non-invasive assessment of autonomic cardiovascular control in normal human pregnancy and pregnancy associated hypertensive disorders:a review [J]. J Hypertens, 2002,20:2 111～2 119
5[6]Pagani M, Heart rate variability and prenancy[J]. Hypertens,2002,20(11):2 125～2 126
