Funding for this research was provided by:
Università degli Studi di Milano-Bicocca (14291 2015)
Received: 11 September 2019
Accepted: 16 March 2020
First Online: 30 March 2020
Ethics approval and consent to participate
: The study was approved by the Institutional Review Board (San Gerardo Hospital’s Ethical Committee, 23rd December 2014, reference number 482, informed consent included). Written informed consent was obtained from all participants.
: Not applicable
: The authors declare that they have no competing interests.