Text and Data Mining valid from 2018-03-27
Received: 25 January 2018
Accepted: 26 February 2018
First Online: 27 March 2018
Ethics approval and consent to participate
: The study design was approved by the Ethics Committee of L. Sacco Hospital and by the Ethics Committee of the Regional Government of Lombardy, Italy. deliberation N.599 (July 30,2009). The ethics committee reviewed the study prior to enrollment of patients. Informed consent was obtained from all participating patients.
: Not applicable.
: The authors declare that they have no competing interests.
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