Only one group of teenagers used marijuana more often after retail sales were legalized in Washington than they did before — high school seniors who work 11 or more hours per week, according to new research led by a WSU College of Nursing professor.
Only one group of teenagers used marijuana more often after retail sales were legalized in Washington than they did before — high school seniors who work 11 or more hours per week, according to new research led by a WSU College of Nursing professor.