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Authors
Salehi Shahrabi, M.
Shahrabi, M.
Heidari, A.
Ghaderi, H.
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Article History
Received: 31 January 2019
Accepted: 14 November 2019
First Online: 10 March 2020
Compliance with ethical standards
:
: There is no conflict of interest to declare.
: The study was approved in the ethics committee of School of dentistry, Tehran University of Medical Sciences (code: IR.TUMS.DENTISTRY.REC.1396.4093).
: Parent signed informed consent forms.
