Shaheen, Mohamed Shafik
AbouSamra, Amir
Helaly, Hany Ahmed http://orcid.org/0000-0002-7590-3445
Said, Amr
Elmassry, Ahmed
Article History
Received: 7 January 2019
Accepted: 16 December 2019
First Online: 2 January 2020
Ethics approval and consent to participate
: The study was approved by the local ethics committee at the faculty of medicine, Alexandria University, Egypt. Tenets of declaration of Helsinki were followed. All included patients signed an informed written consent.
: Not applicable.
: The authors declare that they have no competing interests.