Erfanparast, L.
Iranparvar, P.
Vafaei, A.
Article History
Received: 17 March 2017
Accepted: 17 April 2018
First Online: 16 May 2018
Compliance with ethical standards
:
: Professor Leila Erfanparast declares that she has no conflict of interest with respect to the authorship and/or publication of this paper. Dr. Parastoo Iranparvar declares that she has no conflict of interest with respect to the authorship and/or publication of this paper. Professor Ali Vafaei declares that he has no conflict of interest with respect to the authorship and/or publication of this paper.
: 5–7 years old children were included in our study.
: All procedures performed in this study which involved human participants were in accordance with the ethical standards of the “Committee for Ethics in Research on Humans” at Tabriz University of Medical Sciences (Trial no. IR.TBZMED.REC.1395.994) and with the 1964 Helsinki Declaration of Human Rights and its later amendments or comparable ethical standards.
: Each experiment was included in the study after reading, understanding, and completing the written informed consent document by his/her parent.