From all staff at the UB Adolescent and Family Development Project, we would like to thank you for your participation! We appreciate the time you have taken out of your busy schedule to contribute to the success of the study. It is critical that our participants return year after year so that we can understand how changes during the transition into adolescence impact later development. Because of people like you, we are able to gather important information throughout this critical period in the lives of your sons and daughters. Our hope is that through your generous participation, our project will yield findings that will help healthcare providers better understand the relation between substance use and the transition into adolescence, and ultimately better serve those individuals at risk for negative outcomes. Thank you again. We couldn't do it without you!