Maria A. Parker, Michigan State University (image) Michigan State University Share Print E-Mail Caption Maria A. Parker, a doctoral student in Michigan State University's Department of Epidemiology and Biostatistics, has found that 14- and 15-year-olds are at a higher risk of becoming dependent on prescription drugs within a 12-month period after using them beyond the prescribed amount. Credit G.L. Kohuth Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.