In the spring of 2001 in Missoula, MT, four (Irv Rosenfeld, George McMahon, Elvy Musikka, and Barbara Douglass) of the 6 remaining federal medical marijuana patients underwent an extensive three day examination of every system in their body to determine the long term effects of cannabis. Known widely as The Missoula Chronic Use Study, the investigators concluded that after using cannabis therapeutically for a range of 11 to 27 years, with a dose of nine cured ounces per month for Barbara and others, and eleven cured ounces every 26 days for Irv, they were all in fine condition exempting their original illness and the wear and tear of age. We assume that the federal government never bothered to conduct such long term studies because it did not want to scientifically validate the efficacy of cannabis. A thorough review of the study was published in the Journal of Cannabis Therapeutics.