The issue focused on an article in the March 10, 2013 issue of Science that reported the study's finding that research studies have found a link between medical marijuana and cancer. The article has been referred to as "cannabis science."

Coffman said she was certain that research into the medical use of medical marijuana had not made it to public view. But there is reason to be concerned. A review by government researchers from several sources including the United States Department of Health and Human Services (HHS)