Text and Data Mining valid from 2019-05-10
First Online: 10 May 2019
Compliance with Ethical Standards
: M. Boccadoro, M. Cavo, F. Di Raimondo, M. Offidani, M.T. Petrucci, and P. Tosi declare that they have no conflict of interest.
: This article does not contain any studies with human or animal subjects performed by any of the authors.