Received: 31 October 2019
Accepted: 5 January 2020
First Online: 11 February 2020
Ethics approval and consent to participate
: Institutional (Faculty of Medicine ‘Kasr El-Ainy Hospital’ and National Cancer Institute, Cairo University) ethical clearance was taken before conducting this prospective study; March 2016—Reference number: not available. Written consent was obtained from patients or their authorized representatives.
: All patients included in this research gave written informed consent to publish the data contained within this study. If the patient was less than 16 years old, deceased, or unconscious when consent for publication was requested, written informed consent for the publication of this data was given by their parent or legal guardian.
: The authors declare that they have no competing interests.