Article History
Received: 23 April 2019
Accepted: 9 August 2019
First Online: 21 August 2019
Compliance with ethical standards
:
: All authors have indicated they have no potential conflicts of interest to disclose. All authors declare that they have no financial relationships relevant to this article to disclose.
: This study has been approved by the appropriate institutional and/or national research ethics committee and has been performed in accordance with the ethical standards as laid down in the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.