You could be a hero and save a life! 75% of people who need a stem cell transplant can’t find a match in their own family. DonorDrive4Dorothy will be hosting the event in association with OneMatch, Canada’s stem cell and marrow network. The process of being tested takes between five and ten minutes, and involves having the inside of the cheek swabbed for DNA. Young men between the ages 17-35 are most likely donors to help patients like Dorothy.