Received: 18 May 2017
Accepted: 5 January 2018
First Online: 22 January 2018
Ethics approval and consent to participate
: The authors were asked to participate in a satisfaction survey on a voluntary basis. Participants were informed that this survey was part of a research project. This study was approved by the Social Science Ethical Committee of Faculty of Science, Tanta University and Research, and complied with the Egyptian Code of Conduct for Scientific Practice, National institute of research, Egypt.
: Not applicable.
: The authors declare that they have no competing interests.
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