Conversation so far:
What is the death of Carl for the Beach Boys?
In early 1997, Carl Wilson was diagnosed with lung and brain cancer after years of heavy smoking.
Did Carl Wilson receive treatment for lung and brain cancer?
Despite his terminal condition, Carl Wilson continued to perform with the Beach Boys on its 1997 summer tour while undergoing chemotherapy.

Question: Did this affect his performance?
Self-contained rewrite: Did Carl Wilson's terminal condition affect his performance with the Beach Boys on their 1997 summer tour?