Received: 19 May 2020
Accepted: 3 August 2020
First Online: 15 November 2020
Ethics approval and consent to participate
: We didn’t request the ethics committee approval because Italian law doesn’t require ethical approval for retrospective studies of this type with no drugs use. All procedures were conducted in accordance with the ethical standards of our responsible committee (Ethics Committee of Marche Region). The study was based on retrospective data routinely recorded in clinical practice. Written informed consent was obtained from patients to treat their data.
: Not applicable.
: The authors declare that they have no competing interests.