Many years ago I did IT work for a company who got the patent. They figured out you can biopsy cancer cells. Implant them in generic fish and then monitor what

Many years ago I did IT work for a company who got the patent. They figured out you can biopsy cancer cells. Implant them in generic fish and then monitor what happens in the fish. If the cancer spreads you know it will spread in the human. If it doesn't spread in the fish it doesn't spread in the human. The big deal, if you know this answer, you can go chemo if it does spread or surgery if it doesn't. Being able to make this informed decision basically lets you treat cancer at extremely high success rates. They sold the rights to a big insurance company.