González, M.
Calvo, V. http://orcid.org/0000-0002-3503-4847
Redondo, I.
Provencio, M. http://orcid.org/0000-0001-9053-9197
Article History
Received: 29 May 2020
Accepted: 27 October 2020
First Online: 2 February 2021
Compliance with ethical standard
:
: Dr. M. Provencio has received personal fees from Bristol-Myers Squibb, Merck Sharp & Dohme (MSD), Roche, AstraZeneca and Takeda. Dr. V. Calvo has received personal fees from Bristol-Myers Squibb (BMS), Merck Sharp & Dohme (MSD), Roche, AstraZeneca and Takeda. The other authors do not have conflicts of interest to declare.
: Ethical approval was waived by the local Ethics Committee of Hospital Universitario Puerta de Hierro in view of the retrospective nature of the study.
: Not applicable.