This book is part of a book series called Usa Today Health Reports-Diseases And Disorders .

This book has been graded for interest at 11-18 years.

There are 128 pages in this book. This book was published 2011 by Twenty-First Century Books (Tm) .

Marlene Targ Brill, a former special educator, is an award-winning author of more than 60 books by various publishers including Children's Press and Barron's. Many of her titles have been for teens and young adults, including books about diabetes, asthma, and Tourette syndrome.