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Article History

Received: 10 November 2019

Revised: 30 January 2020

Accepted: 28 March 2020

First Online: 8 April 2020

Compliance with ethical standards

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: AD Cohen received research grants from Janssen, Novartis, AbbVie, Janssen and Sanofi, and served as a consultant, advisor or speaker to AbbVie, Amgen, Boehringer Ingelheim, Dexcel pharma, Janssen, Kamedis, Lilly, Neopharm, Novartis, Perrigo, Pfizer, Rafa, Samsung Bioepis, Sanofi, Sirbal and Taro. All other authors have no conflict of interest to declare.

: All procedures performed in this study were in accordance with the ethical standards of the institutional national research committee and with the Declaration of Helsinki.