Harling, Kirstin
Adankwah, Ernest
Güler, Alptekin
Afum-Adjei Awuah, Anthony
Adu-Amoah, Louis
Mayatepek, Ertan
Owusu-Dabo, Ellis
Nausch, Norman
Jacobsen, Marc
Article History
Received: 3 November 2017
Revised: 27 December 2017
Accepted: 27 December 2017
First Online: 19 March 2018