N M Magid

Heart rate variability and sudden death secondary to coronary artery disease during ambulatory electrocardiographic monitoring.

D H Singer, G J Martin, D. Singer, 1987, The American journal of cardiology.

Power spectral analysis of heart rate variability in sudden cardiac death: comparison to other methods.

D H Singer, G J Martin, D. Singer, 1986, IEEE transactions on bio-medical engineering.

The long-term increase of baseline and reflexly augmented levels of human vagal-cardiac nervous activity induced by scopolamine.

D L Eckberg, D. Eckberg, N. Magid, 1985, Circulation.