El-ghandour, Ahmed http://orcid.org/0000-0001-8289-2644
Eltamimy, Abdou http://orcid.org/0000-0002-4550-4304
Hameed, Mohamed Farhat O. http://orcid.org/0000-0001-5677-7685
Obayya, S. S. A. http://orcid.org/0000-0003-2436-0791
Article History
Received: 27 November 2018
Accepted: 22 January 2019
First Online: 4 February 2019
Compliance with ethical standards
:
: All authors declare that there are not any relationships or interests that could influence or bias the submitted work.