Received: 7 June 2020
Accepted: 18 July 2020
First Online: 9 August 2020
Compliance with ethical standards
: All authors disclose no interests related to the present work.
: The study was approved by the Institutional Review Board of Teaching Hospital Policlinico of Bari (Ethical Committee No. 6380). The procedures used in this study adhere to the tenets of the Declaration of Helsinki.
: The study was approved by our local ethical committee and informed consent was obtained.
: Informed consent was obtained from all individual participants included in the study.