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Article History
Received: 24 October 2018
Accepted: 28 November 2018
First Online: 11 February 2019
Compliance with ethical standards
:
: The authors have no competing interests to declare.
: The ethics committee of the “Comitato Etico Regionale delle Marche—C.E.R.M.” reviewed and approved this study protocol on September 7, 2017 (protocol no. 2017-0244-AS). All the participating centers submitted the protocol and obtained authorization from the local institutional review board. After completion of the full study report, anonymized participant-level datasets will be available upon reasonable request by contacting the principal investigator.
: Informed consent was obtained (in written form) by all the participants in the study.