Lundberg, Peter W.
Gotsch, Abigail
Kim, Eonjung
Claros, Leonardo
Stotlzfus, Jill
El Chaar, Maher
Article History
Received: 23 May 2018
Accepted: 7 October 2018
First Online: 22 November 2018
Compliance with ethical standards
:
: All authors including Peter W Lundberg, Abigail Gotsch, Eonjun Kim, Leonardo Claros, Jill Stoltzfus, and Maher El Chaar have no conflicts of interest to disclose.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. For this retrospective study, formal consent is not required.
: As this study involved a retrospective review of a prospectively maintained, de-identified database, obtaining informed consent did not apply, and we obtained an exemption from informed consent by our center’s Institutional Review Board.