The studies varied in their followup schedule, so these time points range from one month to 12 months, but you can see there's a really quite consistent effect favoring LSD, and the overall odds ratio is very close to 2, which translates into a number needed to treat of 6 to 7 for the drinking outcomes at this first followup, which is slightly better than the effects that you see with naltrexone at end of treatment, naltrexone being the most effective FDA-approved pharmacotherapy for alcohol dependence that's currently available. 