AURORA, Colorado, April 5 -- The University of Colorado School of Public Health issued the following news release: * * * Study Finds One In Five U.S. Adults Use Multiple Drugs, Revealing New Patterns In Substance Use Researchers push for personalized healthcare approaches to address new, complex drug use patterns A study from researchers at the University of Colorado Anschutz Medical Campus reveals that nearly one in five U.S. adults have used multiple drugs in the past year, showing that su more PR