Yao, Yuan
Johnson, Nicholas James
Perman, Sarah Muirhead
Ramjee, Vimal
Grossestreuer, Anne Victoria
Gaieski, David Foster
Article History
Received: 31 May 2017
Accepted: 21 September 2017
First Online: 5 October 2017
Compliance with ethical standards
:
: The authors declare that they have no competing interests.
: NJ receives Grant support from the National Institutes of Health (U01HL123008-02). During part of the study period, the PATH database was supported by an unrestricted educational grant from Gaymar/Stryker.
: This study was approved by the Institutional Review Board at the University of Pennsylvania.
: For this type of study, informed consent is not required.