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Authors
Afzal, Muhammad Raheel
Pyo, Sanghun
Oh, Min-Kyun
Park, Young Sook
Yoon, Jungwon https://orcid.org/0000-0003-1350-5334
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Article History
Received: 29 June 2017
Accepted: 27 March 2018
First Online: 16 April 2018
Ethics approval and consent to participate
: This study was conducted according to the declaration of Helsinki and had ethical approval from Institutional Review Board at the Gyeongsang National University. All subjects gave written informed consent prior to data collection.
: Participants gave written informed consent to data treatment in this research study and permission to publish anonymous data and results.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
