Received: 13 March 2020
Accepted: 27 April 2020
First Online: 3 June 2020
Ethics approval and consent to participate
: This research involved human subjects and was performed in accordance with the Declaration of Helsinki and approved by the Menoufia University Ethical Committee with reference number 3072016, Egypt. A written informed consent was obtained from all patients.
: Not applicable
: The author Prof Hala Mahfouz Badran is the Editor-in-Chief of this journal and she declares that she has no competing interest and no one of the authors has competing interests regarding this manuscript. The authors declare that they have no competing interests.