McKenna, N. P.
Habermann, E. B.
Larson, D. W.
Kelley, S. R.
Mathis, K. L.
Article History
Received: 16 February 2019
Accepted: 21 April 2019
First Online: 2 May 2019
Compliance with ethical standards
:
: Nicholas McKenna, Elizabeth Habermann, David Larson, Scott Kelley, and Kellie Mathis declare that they have no conflict of interest.
: This study received ethical approval from the Mayo Clinic Institutional Review Board (Application #18-004607).
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the Mayo Clinic Institutional Review Board (ID #18-004607) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This article does not contain any studies with animals performed by any of the authors.
: For this retrospective study, formal consent is not required.