citation more citation /od/pot/a/marijuana_test.htm few hours THC in the blood stream citation citation google half life of THC. citation citation citation citation citation citation few hours citation citation http://alcoholism.about.com/od/pot/a/marijuana_test.htm citation few hours for months how marijuana metabolizes in our system few hours noted citation citation Source citation citation citation citation citation few hours marijuana will leave your system in 10 to 13 days few hours citation citation citation how marijuana metabolizes in our system few hours few hours citation citation How Long Can Marijuana Be Detected? citation few hours citation citation citation citation few hours citation http://alcoholism.about.com/od/pot/a/marijuana_test.htm citation http://alcoholism.about.com/od/pot/a/marijuana_test.htm citation http://alcoholism.about.com/od/pot/a/marijuana_test.htm few hours citation citation citation citation http://alcoholism.about.com/od/pot/a/marijuana_test.htm citation citation citation citation few hours citation for months citation citation http://alcoholism.about.com/od/pot/a/marijuana_test.htm how marijuana metabolizes in our system few hours citation google half life of THC. few hours few hours citation citation positive result for up to 2-3 months for THC few hours few hours citation few hours citation About 13 days citation few hours citation http://alcoholism.about.com/od/pot/a/marijuana_test.htm citation how marijuana metabolizes in our system few hours