Arafat, Amr A.
Elatafy, Elatafy E.
Elshedoudy, Sahar
Zalat, Mahmoud
Abdallah, Neamet
Elmahrouk, Ahmed
Article History
Received: 18 October 2017
Accepted: 17 January 2018
First Online: 22 January 2018
Ethics approval and consent to participate
: Study protocol was approved by the Ethical Committee of the Faculty of Medicine, Tanta University. The need for informed consent was waived due to the retrospective nature of the study.
: Not applicable.
: The authors declare that they have no competing interests.
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