No surgery is 100% safe, and anesthesia is also risky. However, if his cardiologist has cleared him that means he is in good enough health to undergo the procedure. It is good that the cancer hias not spread, and if his cancer can be removed surgically now this should give him a very good chance of recovery. Good luck to him.
jd
What does that have to do with my question
I think there is total agreement that medical marijuana is approved, unfortunately most people in Europe and USA use it unequivocally, and that's what hurts for approval in these countries especially in USA, this is what findrxonline indicating as they try to report the correct medicines that can help people.