sentence: Preclinical research using a rodent model of cue exposure therapy ( CET ) show that this type of treatment is more effective in adults compared to adolescents , however that adolescent outcomes can be improved by acute treatment at the time of ( CET ) with a dopamine 2 receptor agonist .
question: how is something researched _ _ _ ?
answers: Preclinical using a rodent model of cue exposure therapy CET