Text and Data Mining valid from 2020-04-10
Received: 7 January 2020
Accepted: 9 March 2020
First Online: 10 April 2020
Ethics approval and consent to participate
: All procedures performed in this study were in accordance with the ethical standard of the institutional and national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed written consent for publication was obtained from the patient. A copy of the consent form is available.
: The authors declare that they have no competing interests.