Received: 25 July 2019
Accepted: 26 September 2019
First Online: 23 October 2019
Ethics approval and consent to participate
: “Ethics approval and consent to participate” in compliance with the journal’s Standard.
: Not applicable.
: None of the authors have any conflicts of interests to declare. The authors received no pharmaceutical or industrial support for this study. No further direct or indirect financial support or other assets were transferred to the authors or their family members for this study.