Smoke two joints.

That’s more or less what researchers in Arizona and Maryland are asking of veteran volunteers — per day, for data in a revolutionary study that aims to find out if marijuana relieves symptoms of post-traumatic stress disorder (PTSD).

Currently, they don’t have enough vets on board, so if you’re interested (and you’re in the Baltimore, Maryland) call 410-550-0050 to sign up.

If you’re in the American Southwest, email the following address: arizona@marijuanasites.org.

Enrollment, officially, starts in September.

More from the Military Times:

“We’re not arguing that cannabis is a cure, but our hypothesis is that it will at least reduce the symptoms,” says physician and study organizer Dr. Sue Sisley.

The $2.2 million study, paid for by a grant from the state of Colorado to the nonprofit Multidisciplinary Association for Psychedelic Studies, will be conducted at Johns Hopkins University in Baltimore, Maryland, and Sisley’s Scottsdale Research Institute in Phoenix, Arizona.

A total of 76 combat veterans will be tested over 12 weeks, but only about four subjects will begin each month across both sites, so the study itself is expected to take two years to complete.

The ideal candidate, Sisley says, will have a disability rating from the Department of Veterans Affairs for combat-related PTSD but otherwise be generally healthy and have no other major medical issues. Those with traumatic brain injuries, however, will be eligible to participate.

Candidates should already have been treated for PTSD with therapy and/or prescription drugs but still have symptoms, she says.

This will be the first ever “randomized, controlled trial in the United States” to see just how effective the plant is for treating the debilitating condition.

Not only will participants be observed for four hours per day for the first couple days, they’ll be taught the “Fulton Puff Procedure” — “five-second inhale, 10-second breath hold, 40-second inter-puff interval.”