Khalid, Zaid
Sorteberg, Wilhelm
Nedregaard, Bård
Sorteberg, Angelika
Article History
Received: 2 September 2018
Accepted: 26 November 2018
First Online: 13 December 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. For this type of study, formal consent is not required.(The study has been approved by the institutional data protection officer as a quality study with reference number 2017/993)
: Informed consent was waived by the data protection officer for this type of study.