Received: 17 February 2020
Accepted: 7 October 2020
First Online: 19 October 2020
Ethics approval and consent to participate
: Ethical approval was not required for this questionnaire as it was completed after treatment and did not affect the care received by any of the patients. Nevertheless, the questionnaire was provided to participants in accordance with the ethical standards of our institution and with the 1964 Helsinki declaration and its later amendments.
: Not applicable.
: The authors declare that they have no competing interests.