On behalf of the Angelman Syndrome Foundation (ASF) and the Dup15q Alliance (DA), we would like to invite you to attend our joint scientific symposium, “Two Sides of a Coin: Deletions and Duplications on 15q”, to be held August 14-15 in Cambridge, MA. 
 
As with past ASF and DA meetings, the conference will bring together scientists and clinicians studying all aspects of these syndromes. Given the close molecular relationship between Angelman syndrome and Dup15q syndrome, an additional goal of this symposium is to feature research and foster discussion that may lead to mutually productive collaboration between professionals whose focus was hitherto restricted to one syndrome or the other. As always it is hoped that the discussions will advance understanding and treatment development for these syndromes, and for autism spectrum disorders in general.