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.
Marijuana Medical Card. Marijuana Medical Card â Cannabis, Weed and pot Doctors. Weed Doctors Santa Monica CA. July 14, 2011. Weed Doctors Santa Monica CA are usually medical professionals who are licensed to rehearse treatments inside the state of California and so are certified to be able to approve using therapeutic marijuana.