Article History
Received: 19 June 2019
Accepted: 19 August 2019
First Online: 29 August 2019
Compliance with ethical standards
:
: KM has receiving research Grant from Edwards Lifesciences and is a consultant for Edwards Lifesciences. BS collaborates with Pulsion Medical Systems (Feldkirchen, Germany) as a member of the medical advisory board and received honoraria for giving lectures and refunds of travel expenses from Pulsion Medical Systems. He received research support from Edwards Lifesciences, received institutional research grants, unrestricted research grants, and refunds of travel expenses from Tensys Medical (San Diego, CA, USA), and received honoraria for giving lectures and refunds of travel expenses from CNSystems Medizintechnik (Graz, Austria).
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