Caputo, M.
Ucciero, A.
Mele, C.
De Marchi, L.
Magnani, C.
Cena, T.
Marzullo, P.
Barone-Adesi, F.
Aimaretti, G.
Article History
Received: 4 June 2018
Accepted: 25 July 2018
First Online: 1 August 2018
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 and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The study protocol was approved by the local ethical committee of the “Maggiore della Carità” Hospital, Novara (CE 58/18).
: The study was performed using data routinely collected in the regional administrative health care databases and the authors had access only to anonymized data, so for this type of study informed consent was not required.