Article History
Received: 6 September 2018
Accepted: 18 December 2018
First Online: 2 January 2019
Compliance with ethical standards
:
: There is no conflict interest among the authors. Author EU declares that she has no conflict of interest. Author EG declares that she has no conflict of interest. Author EO declares that he has no conflict of interest. Author EUA declares that she has 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.
: Informed consent was obtained from the caregivers of all participants included in the study.