Well first of all you have to get comfortable with the concept that children actually can have depression. And that children's depression looks different than adult depression. The kids who are the frequent flyers in the nurse's office at school, who are expressing distress through headaches and stomachaches. Those kids are at risk of being depressed. And they may not be able to say, I'm sad. They may show you instead of tell you. So one of the important things about getting a comprehensive evaluation of a child and looking at every aspect of their well being - their family, their strengths - is try to understand if they have a clinical depression or if they're just expressing stress. The next, more sophisticated level, is to figure out if there's a family history of bipolar disorder because that raises the risk that the child will have bipolar disorder. That's particularly important because one of the treatments for childhood depression and adolescent depression is anti-depressants. It's not indicated for every child. And it's not the only treatment for any child in getting an comprehensive evaluation. But anti-depressant therapy can make bipolar disorder worse. So it's a complicated area, and this is why I think it's important for people to get a good comprehensive evaluation, and also to better understand their own family history.