 We weren't able to look at that in our study because we were very focused on one particular receptor in the brain that cannabinoids can act upon. When people smoke marijuana, of course, there are a lot of different chemical compounds and cannabinoids that are present in marijuana, so it's quite a complex situation. Whereas people who are taking cannabinoids for diseases or for treatment of different types of disorders, it's probably that the compounds they'll take will be much more restricted and more selective.