Brom, Martin http://orcid.org/0000-0003-3960-3741
Carrizo, Carolina Eva
Arana, Roberto Miguel
Pisoni, Cecilia Nora
Article History
Received: 29 August 2018
Revised: 15 September 2018
Accepted: 16 September 2018
First Online: 20 September 2018
Compliance with ethical standards
:
: None.
: All procedures were in accordance with the ethical standards of the institutional and research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Since this is a retrospective study, formal consent is not required.