Received: 29 March 2019
Accepted: 22 November 2019
First Online: 17 January 2020
Ethics approval and consent to participate
: The study described has been carried out in accordance with The Code of Ethics of the World Medical Association (Declaration of Helsinki) for experiments involving humans (updated 2008). Written informed consent was obtained from patients and controls and the study was approved by the local ethic (“Policlinico Tor Vergata”, Rome, Italy).
: The consent for publication has been obtained from subjects.
: The authors declare that they have no competing interests.