Heindl, Ludwig M.
,
Augustin, Albert J.
Messmer, Elisabeth M.
Article History
Received: 9 July 2018
Accepted: 18 September 2018
First Online: 25 September 2018
Compliance with ethical standards
:
: Supported by VISUfarma, Netherlands. The sponsor participated in the design and conduct of the study, data collection; management, analysis, and interpretation of the data; and preparation and review of the manuscript.
: The authors declare that they have no conflict of interest.