Article History
Received: 24 November 2020
Accepted: 4 January 2021
First Online: 12 January 2021
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: AS received research grants (to institution) from Bristol Myers Squibb, Merck, AstraZeneca, Exelixis, Clovis, and advisory board/ consulting fees from Bristol Myers Squibb, Merck, AstraZeneca, Exelixis and Pfizer. WS received research grants (to institution) from Merck, AstraZeneca, and advisory board/ consulting fees from Bayer. RP has no conflict of interest to declare.