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About the article
Published Online: 2017-07-08
Published in Print: 2018-01-26
Conflict of interest: Authors state no conflict of interest.
Material and methods: Informed consent: Informed consent has been obtained from all individuals included in this study.
Contribution to authorship: JJ: Data management, statistical analysis, writing of the manuscript. MK: Study design and revision of the manuscript. RZ: Study design and revision of the manuscript. NK: Study design, data management, statistical analysis and writing of the manuscript.
Ethical approval: The research related to human subject use has complied with all the relevant national regulations, and institutional policies, and is in accordance with the tenets of the Helsinki Declaration, and has been approved by the authors’ institutional review board or equivalent committee.
Funding: No funding was obtained for this study.