doblin and sisley will have to wait for the grow at ole miss. >> when rick doblin got his study approved back in march, there were specific strains he wanted. did you have the strains that he wanted? >> no, you have to develop the strains, get the right material, the right composition, then you have to propogate it and produce the final product. >> and all of that takes time, causing potentially deadly delays. >> our focus has to be what's best for the patients. how do we get this to the patients, many of whom are committing suicide because of ptsd? >> while rick waits for his cannabis to be grown -- >> let me have a quick listen to your breathing. >> -- many man doesn't have to. ole miss already had the strain that oncologist dr. donald abrams needed for his newest study. >> this is a two-part experiment. >> what he's doing is yet another sign of the revolution. it's something we first saw in israel two years ago. >> that's your medicine inside there. >> and never thought we'd see in the united states. a patient using marijuana like this in a hospital room. >> it's unique. it's differen

. >> rick doblin is a researcher and is a doctor from harvard. he's been trying to study marijuana for decades >> one of the surprising things about marijuana is it suppresses dream recall. for people who are traumatized and have nightmares, the opportunity to have a good night's sleep without remembering their nightmares can be fundamentally transformative. also, marijuana tends to focus people's attention on the here and now, and that's also really important for people who are carrying the trauma from the past into the present. >> if all of that was true, it sounded like marijuana could be an ideal treatment for ptsd, yet understandably there are many skeptics. >> i was really stunned when more and more patients were coming out of the shadows and disclosing to me they were having some, you know, useful experiences with this marijuana plant. >> when you use marijuana, what happens to the ptsd? >> they relax me and they help with my muscle spasms and they make me sleepy. so they help me when i'm getting closer to bedtime. >> dr. sue cecily needed