Merck got a lot riding on this https://www.drugs.com/history/keytruda.html https://www.forbes.com/sites/davidshaywitz/2017/07/26/the-startling-history-behind-mercks-new-cancer-blockbuster/#3c390545948d & who advises Merck, Pfizer, Sanofi over 20 plus years Looking @ adding Bro Spread doesn't scare me here