Borghesi, Andrea http://orcid.org/0000-0002-4761-2923
Michelini, Silvia
Zigliani, Angelo
Tonni, Ingrid
Maroldi, Roberto
Article History
Received: 20 October 2018
Accepted: 30 January 2019
First Online: 5 February 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in this study were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: This study was retrospective, and it did not alter the management of the patients; thus, no specific consent was required.