El-Nawawy, Ahmed
Mohsen, Aly Abdel
Abdel-Malik, Manal
Taman, Sarah Omar
Article History
Received: 31 January 2017
Revised: 19 April 2017
Accepted: 24 April 2017
First Online: 10 May 2017
Compliance with ethical standards
: All procedures performed in this study involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The Alexandria University ethical committee approved the study design on March 2015 (IRB:00007555-FW:00015712), since no interventions were undertaken and the study is strictly observational. An informed consent was obtained from all patients.
: No funding was obtained for this study.
: The authors declare that they have no conflict of interest.
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