I do read all articles. thank you for this one. The purpose of medicine is to help with suffering. The more tools we have for this, the better the world will be. PD is horrible, I know it is, and those patients should be allowed anything that would help their symptoms. I never can figure out what this substance is in such arguement. Most medicines are plant based. I take morphine, I would rather take something that does not have the harsh side effects. I don't think this will happen in my life time, because too many criminals are involved with its distribution. Political agenda crops up too. We use a medication from frog skin, who knows what mother nature has, that we have not found yet. I pray for our scientists. ginnie