Man-Ging, Carlos I.
Frick, Eckhard
Baumann, Klaus
Article History
First Online: 14 February 2018
Compliance with Ethical Standards
:
: All 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.
: It was obtained from all individual participants included in the study.