Angelman syndrome: Consensus for diagnostic criteria

Charles A. Williams, Harry Angelman, Jill Clayton-Smith, Daniel J. Driscoll, Jill E. Hendrickson, Joan H.M. Knoll, R. Ellen Magenis, Albert Schinzel, Joseph Wagstaff, Elaine M. midden, and Roberto T. Zori Division of Genetics, Department of Pediatrics, University of Florida College of Medicine (C.A. W., D.J.D., E.M. W., R.T.Z.), Research Advisory Committee, Angelman Syndrome Foundation (J.H.M.K., E.M. W.), Angelman Syndrome Foundation (J.E.H.), Gainesville, Florida; Lee On Solent, Hunts (H.A.), Department of Medical Genetics, St . Mary’s Hospital, Manchester (J.C.S.), Great Britain; Division of Genetics, Children’s Hospital, Boston, Massachusetts (J.H.M.K., J. W.), Oregon Health Sciences Center, Portland, Oregon (R.E.M.); Institute of Medical Genetics, University of Zurich, Switzerland (A.S.)