Thank you, Mr. Chair.
Thank you to all the witnesses for coming.
I come from a medical background. I'm an emergency physician. I practised for 20 years. Coincidentally, Dr. Zacharias, I'm married to an anaesthetist.
I was glad to hear what you've been saying because I felt the same, although I was a supporter of legalizing for the recreational because I think the harms of the previous regimen were greatly outdoing the benefits. I was trying to find good medical evidence for it. I agree, some witnesses have said cannabis, in large part, although it has some use, has been more a triumph of marketing over science. I'm glad to hear you say that we need better evidence. We need a good, strong system because we want to do no harm, as the first part of the Hippocratic oath says.
I also really like your idea of a registry so that people who are having it prescribed can be tracked. I think that's a very good idea too. I think that's a good way we can get some research done.
Of the evidence that is there, what evidence do you know of on the use of cannabis for either pain or anxiety secondary to PTSD? What is the evidence that you're aware of on the benefits versus the harms in them, Tony?