Text and Data Mining valid from 2019-10-05
Received: 3 June 2019
Accepted: 30 August 2019
First Online: 5 October 2019
Ethics approval and consent to participate
: The study was approved by the local ethics committee of the Medical Research Institute, Alexandria University (reference number: IORG 0008812), in accordance with the Code of Ethics of the World Medical Association (Declaration of Helsinki) for research involving humans, and written informed consent was obtained from all included patients before the acquisition of the tissue specimens.
: Not applicable
: The authors declare that they have no competing interests.