可能因为您的浏览器不支持样式,您可以更新您的浏览器到最新版本,以获取对此功能的支持,访问下面的网站,获取关于浏览器的信息:
[1]Saul JP,Anai Y,Berger RD, et al.Assessment of autonomic regulation in chronic congestire heart failure by heart rate spectral analysis.Am J Cardiol, 1986; 61:1293.
[2]Casolo GC, Balli E, Taddi T, et al.Decreased spontaneous heart rate variability in congestive heart failure.Am J Cardiol, 1989; 64: 1162.
[3]Malliani A , Pagani M ,Lombwdi F, et al.Cardiovascular neural regulation explored in the frequency domain.Circulation, 1991; 84: 482.