I recently found some links to Prostate Cancer.
They’re written with a local, Kiwi perspective, and address the issue of how reliable PSA tests are.
These NZ links are well worth a read!
https://healthify.nz/health-a-z/p/prostate-screening/
https://www.cancer.org.nz/cancer/types-of-cancer/prostate-cancer/prostate-screening/