Ethical approval and consent to
participate
All procedures performed in this study 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.
Consent to participate: from the under 16 years old was given
by a parent or legal guardian
Consent for publication: Not applicable
Availability of data and material: Data sharing is not
applicable to this article as no datasets were generated or analyzed
during the current study.
Funding: This study had a research project grunt from Tehran
university of Medical science. The authors declare no conflict of
interests.