 The 39-year-old driver of the Harley was wearing a helmet. The 13-year-old driver of the Tracker 800 not wearing a helmet at the time of the accident reported just before noon on July 13th. Both drivers were taken to Lake Region Health Care Facility, treated for injuries troopers at the scene described as non-life-threatening. Published in the PNAS, that's the Proceedings of the National Academy of Sciences in the U.S., a University of Minnesota study examined the health outcomes of 2005 blood cancer patients