Received: 10 April 2020
Accepted: 10 June 2020
First Online: 23 June 2020
Compliance with ethical standards
: The authors have no competing interest to disclose.
: None required.
: All procedures performed in this study involving patients were in accordance with the ethical standards of the national research commitee and with the 1964 Helsinki declaration and its later amendments.
: Informed consent to consult clinical records was obtained from all patients included in the studies.