It's interesting that for each of the studies that have taken place in the different countries, in order for them to study the effects, they essentially have to come up with their own mini-set of standards to make sure that the measurements they collect are consistent. We can look at some of the aspects of the U.S. study. I won't go into it, but they were the most rigorous of all the studies that have been put on the table, in terms of developing consistent measures across their service dogs. I'll stop there.
On May 12th, 2021. See this statement in context.