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Article History

First Online: 19 October 2019

Compliance with Ethical Standards

: The authors would like to declare that the work described in this paper was approved by the non-profit social service organization involved in this study. All of the participants involved in this study were informed of the purpose, procedure, and principles of confidentiality of the study. Informed consent has also been obtained prior to the study. All authors have contributed to and approved the final manuscript and declare that they have no conflict of interest with the study. Also, all authors are in agreement with the content of the manuscript. The content has not been published or submitted for publication elsewhere.