Hamed, Abdelaaty https://orcid.org/0000-0003-4119-7447
Abdel-Razek, Ahmed S.
Frese, Marcel
Sproß, Jens
Stammler, Hans Georg
Sewald, Norbert
Shaaban, Mohamed https://orcid.org/0000-0001-9281-2505
Article History
Received: 18 April 2019
Revised: 1 June 2019
Accepted: 11 June 2019
First Online: 9 July 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.