Text and Data Mining valid from 2019-01-10
Received: 20 May 2018
Accepted: 7 January 2019
First Online: 10 January 2019
Compliance with ethical standards
: The authors declare that there is no conflict of interest regarding the publication of this article.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the ethics committee of the “Institut Jules Bordet” (Belgium) and with the 1964 Helsinki declaration and its later amendments.
: Informed consent was obtained from all individual participants included in the study.