Contributors
Physikalisch-Technische Bundesanstalt (PTB)), the National Metrology Institute of
Germany, has provided this compilation
of digitized ECGs for research, algorithmic benchmarking or teaching purposes to the
users of PhysioNet. The ECGs were
collected from healthy volunteers and patients with different heart diseases by
Professor Michael Oeff, M.D., at the
Department of Cardiology of University Clinic Benjamin Franklin in Berlin,
Germany.
[https://www.ptb.de/cms]
It shows that the filtering is being done correctly.