Received: 5 February 2020
Accepted: 9 June 2020
First Online: 2 July 2020
Ethics approval and consent to participate
: The study protocol was approved by Hospital Elite day surgery ((05/11/2016), and the study was conducted in accordance with the Helsinki declaration. A written informed consent from the participants was given before the study.
: Not applicable
: The author declares that he has no competing interests.