Angelman syndrome is a complex genetic disorder that was first described in 1965 by the English physician Dr. Harry Angelman. At the time, three children who presented a variety of disabilities were admitted to his center. Although at first sight it looked like they were suffering from different disorders, Dr. Angelman felt that there was a common cause for their conditions. He was right. The condition--caused by a chromosomal abnormality--Angelman syndrome is typically diagnosed between the ages of three and seven, and in some cases, it is misdiagnosed for other conditions. This informative book is packed with all you need to know about this devastating condition and includes causes, tests, and treatment options.