DeMarzo, Arthur P.
Article History
Received: 11 February 2018
Accepted: 16 February 2018
First Online: 22 February 2018
Compliance with ethical standards
:
: The author reports that there is no specific funding in relation to this research. A potential conflict of interest is that the author is an employee of the company which manufactured the impedance cardiograph used in this research.
: All procedures performed in this study involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: This was a retrospective study. Identifying details of the participants that were studied were not published.