NORMAN, Oklahoma, April 8 -- The University of Oklahoma issued the following news release: * * * University of Oklahoma Researchers Study Effects of Cannabis on Sedation, Cancer Treatment Symptoms OKLAHOMA CITY, OKLA. - As more patients report using cannabis in a state where medical marijuana is legal, researchers across several disciplines at the University of Oklahoma Health Sciences are uncovering insight into the effects of cannabis use on sedation and cancer symptoms. In a journal publi  more