Cannabis Science Expands 5-Year Agreement With Dana-Farber Cancer Institute to Develop Cannabinoid-Based Medications and Associated Delivery Technologies for the Treatment of Cancers IRVINE, CA , Feb. 02, 2018 (GLOBE NEWSWIRE) -- Cannabis Science, Inc., (OTC: CBIS) a U.S. company specializing in the development of cannabinoid-based medicines, has entered into an expanded...