Maksoud, Salah http://orcid.org/0000-0001-8635-531X
Lawson McLean, Aaron http://orcid.org/0000-0001-5528-6905
Bauer, Johannes
Schwarz, Falko http://orcid.org/0000-0003-0821-193X
Waschke, Albrecht http://orcid.org/0000-0001-6043-3850
Article History
Received: 10 October 2019
Accepted: 8 November 2019
First Online: 30 November 2019
Compliance with ethical standards
: Informed consent for publication was obtained from the legal guardians.
: The authors certify that they have no affiliations with or involvement in any organization or entity with any financial interest (such as honoraria, educational grants, participation in speakers’ bureaus, membership, employment, consultancies, stock ownership or other equity interest, expert testimony or patent-licensing arrangements), or non-financial interest (such as personal or professional relationships, affiliations, knowledge or beliefs) in the subject matter or materials discussed in this manuscript.