@article {3239,
	title = {Nonlinear digital signal processing in mental health: characterization of major depression using instantaneous entropy measures of heartbeat dynamics},
	journal = {Frontiers in physiology},
	volume = {6},
	year = {2015},
	keywords = {Bioengineering},
	author = {G. Valenza and R. G. Garcia and L. Citi and E. P. Scilingo and C. A. Tomaz and R. Barbieri}
}
