Tandler, Nancy
Petersen, Lars-Eric
Article History
First Online: 5 February 2018
Compliance with Ethical Standards
:
: On behalf of all authors, the corresponding author states that there is no conflict of interest.
: All procedures 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.
: Informed consent was obtained from all individual participants included in the study.