Article History
Received: 13 September 2018
Accepted: 19 September 2018
First Online: 24 September 2018
Compliance with ethical standards
: The study was approved by the local ethic committee (No. 28-383 ex 15/16).
: BR received honoraria for oral lectures form Abbvie Austria and Germania Pharmaceuticals. The other authors reported none.
: Yes, infants and children.
: Not applicable due to the retrospective study design.