This is my attempt to explain air pressure in ductwork. This video is part of the heating and cooling series of training videos made to accompany my websites... This is my attempt to explain air pressure in ductwork. This video is part of the heating and cooling series of training videos made to accompany my websites... Skip navigation
Medical marijuana refers to the use of the Cannabis plant as a physician-recommended herbal therapy as well as synthetic THC and cannabinoids. So far, the medical use of cannabis is legal only in a limited number of territories, including Canada, Belgium, Australia, the Netherlands, Spain, and several U.S. states.
How to Get Your Medical Marijuana Prescription. Posted by The Marijuana News Staff in April 23rd, 2009. Posted in: Medical Marijuana Tags: medical cannabis doctors, medical marijauna recommendation, medical marijuana doctors, medical marijuana perscription.