Please cite these publications when referencing this material, and also
include the standard citation for PhysioNet:
Goldberger AL, Amaral
LAN, Glass L, Hausdorff JM, Ivanov PCh, Mark RG, Mietus JE, Moody GB,
Peng C-K, Stanley HE. PhysioBank, PhysioToolkit, and PhysioNet:
components of a new research resource for complex physiologic
signals. Circulation101(23):e215-e220 [Circulation
Electronic Pages;
http://circ.ahajournals.org/content/101/23/e215.full]; 2000 (June
13)