Litz, Cristen N.
Amankwah, Ernest K.
Danielson, Paul D.
Chandler, Nicole M.
Article History
Accepted: 24 March 2018
First Online: 11 April 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: For this type of study formal consent is not required. This article does not contain any studies with animals performed by any of the authors.
: 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 type of study formal consent is not required.