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Article History

Received: 19 January 2016

Accepted: 12 October 2016

First Online: 19 October 2016

Compliance with ethical standards

:

: None of the authors has conflict of interest with the submission.

: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee at which the studies conducted (IRB Approval No. 2194) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

: We obtained consent through opt-out procedure from all individual participants included in the study.