Funding for this research was provided by:
NCI, Cairo university (153-17)
Received: 2 October 2019
Accepted: 6 December 2019
First Online: 4 February 2020
Ethics approval and consent to participate
: The study was performed according to the guidelines of 2011 declaration of Helsinki as well as with the guidelines of a good clinical practice. The Ethical Committee of the NCI, Cairo University approved the study protocol and a written informed consent was obtained from each patient or control subject prior to enrolment in the study.
: Not applicable.
: The authors declare that they have no competing interests.