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From the corresponding Author: Supportng Information editorial amendment

Posted by ritapizzi on 04 Apr 2016 at 10:17 GMT

Due to an editorial error, the Supporting Information files have been published without locking the tracked changes.
Since the editorial policy of PlosOne is not to make changes to what is already printed if not in case of errors - and the text does not contain errors -, no correction from PlosOne is expected in the future.
Thus for your reading comfort I invite you to download the Supporting Information as a unique PDF file at the link

https://homes.di.unimi.it...

I beg your pardon for the inconvenience.

No competing interests declared.