Funding for this research was provided by:
Autonomous Province of South Tyrol
Text and Data Mining valid from 2018-04-28
Received: 10 April 2018
Accepted: 20 April 2018
First Online: 28 April 2018
Ethics approval and consent to participate
: The study was approved by the ethics committee of the province of South Tyrol, Italy.
: The authors declare that they have no competing interests.
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