The Seattle Times

1 of 2
Ellen M. Banner / The Seattle Times
Advertising

Tuesday, June 3, 2014

Medical-marijuana patients don’t always know what they’re getting

Kersten Beyer, vice president of clinical affairs at Verda Bio, works on the purification of DNA from plant material. Verda Bio, founded by medical-marijuana patient Jessica Tonani, is devoted to researching the genetics and therapeutic uses of marijuana.