Text and Data Mining valid from 2019-01-21
Received: 31 March 2018
Accepted: 11 January 2019
First Online: 21 January 2019
Compliance with ethical standards
: W. Everaerts is a company consultant for Astellas, Medtronic, Bayer and Janssen; has received company speaker honoraria from Astellas and Janssen. S. Joniau is a company consultant for Astellas, Ipsen, Bayer, Sanofi, and Janssen; has received company speaker honoraria from Astellas, Amgen, Bayer, Sanofi, Janssen, and Ipsen; has participated in trials for Astellas, Janssen, and Bayer; has received fellowship and travel grants from Astellas, Amgen, Bayer, Sanofi, Janssen, Ipsen, and Pfizer; and has received grant and research support from Astellas, Bayer, and Janssen. The other authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.
: This is a retrospective study. For this type of study formal consent is not required.