Kübler, L.
Bittmann, I.
Kuipers, J. G.
Article History
First Online: 17 August 2020
Compliance with ethical guidelines
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: J.G. Kuipers reports personal fees and non-financial support from Amgen, Pfizer, Boehringer Ingelheim, and Swedish Orphan Biovitrum. L. Kübler and I. Bittmann declare no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
: For this article no studies with human participants or animals were performed by any of the authors. All studies performed were in accordance with the ethical standards indicated in each case. For images or other information within the manuscript which identify patients, consent was obtained from them and/or their legal guardians.