Text and Data Mining valid from 2018-09-29
Received: 18 April 2018
Accepted: 24 September 2018
First Online: 29 September 2018
Ethics approval and consent to participate
: The study was approved by the ethics committee of the Fondazione IRCCS Ca′ Granda under the vote #179/13. All participants signed informed consent forms.
: Not applicable.
: The authors declare that they have no competing interests.
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