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Article History

Received: 4 September 2017

Accepted: 16 February 2018

First Online: 27 February 2018

Compliance with ethical standards

:

: Human participants were involved but only by the retrospective chart review. Ethics approval for the data collection was obtained from the Ethics committee of Hannover Medical School (vote number 1612).

: Kaehler KC serves as consultant to Roche, Bristol-Myers Squibb (BMS), MSD Sharp& Dohme (MSD) and received travel Grants and speaker fees from Roche, BMS, MSD, GlaxoSmithKline (GSK), Amgen. Eigentler TK has no conflicts of interest. Gesierich A serves as consultant/speaker to Roche, BMS, MSD, Novartis, Amgen, Pfizer and received travel grants from Roche, BMS, MSD, GSK and Novartis. Heinzerling L serves as consultant/speaker to Roche, BMS, MSD, Novartis, Amgen, and received travel grants from Roche, BMS, MSD, Roche, Amgen and Novartis. Loquai C serves as consultant to Roche, BMS, MSD, Novartis, Leo, Pierre Fabre, Amgen, La Roche-Posay and received travel Grants and speaker fees from Roche, BMS, MSD, Novartis, Pierre Fabre, Amgen and La Roche-Posay. Meier F has no conflicts of interest. Meiss F serves as consultant /speaker to Roche, BMS, MSD, Amgen, Novartis, GSK and received travel Grants and speaker fees from Roche, BMS, MSD, GSK, Novartis. Pföhler C serves as a consultant/speaker to Roche, BMS, MSD, Amgen, Novartis, GSK and received travel grants and speaker fees from Roche, BMS, MSD, Amgen, Novartis, GSK. Schlaak M serves as consultant to Novartis, BMS, Roche, MSD and received travel Grants and speaker fees from BMS, MSD, Roche and Amgen. Terheyden P serves as consultant/speaker to Roche, BMS, Amgen, Merck, Novartis and received travel grants from Roche, BMS, Merck. Thoms KM serves as consultant/speaker to Roche, BMS, MSD, Novartis and received travel Grants and speaker fees from Roche, BMS, MSD, Novartis. Ziemer M serves as speaker to Roche, BMS, MSD, Amgen, Novartis and received travel Grants and speaker fees from BMS, Amgen. Zimmer L has served as consultant or/and has received honoraria from Roche, BMS, MSD, GSK, Novartis, Merck, and travel support from MSD, BMS, Amgen and Novartis. Gutzmer R serves as speaker to Roche, BMS, GSK, Novartis, Merck Serono, MSD, Almirall-Hermal, Amgen, Galderma, Janssen, Boehringer Ingelheim and received research grants from Novartis, Pfizer, Johnson&Johnson. He serves as consultant to Roche, BMS, GSK, Novartis, MSD, Almirall-Hermal, LEO, Amgen, Pfizer, Pierre Fabre, La Roche-Posay, Merck Serono and Regeneron.