Text and Data Mining valid from 2018-03-08
Received: 14 December 2017
Accepted: 5 March 2018
First Online: 8 March 2018
Compliance with ethical standards
: The authors declare that they have no competing interests.
: The present study was performed in accordance with the institutional review board guidelines, as well as the Helsinki Declaration of 1983, and it has been reviewed and approved by the Ethics Committee of the School of Medicine Second University of Naples, Italy (n. 2/15).
: Each volunteer has provided a copy of his identity document, has read and signed a detailed informed consent with authorization to publish the data for this study. All consents and authorizations in the original file are available at office of Dr. Petrosino Vincenzo solely responsible for data use and management.