I wish there was more info on exactly how Veneto/N

I wish there was more info on exactly how Veneto/NDS works with doctors, patients, etc. They say the focus is pre and post surgery non-opioid pain reduction. How does that work exactly? How do doctors find out about them? Why are they limiting their scope so much? How does cannabis figure into it? Is the reason they are only going after 27 states because only 27 states have medical cannabis laws? So many questions....