RT Journal Article SR Electronic T1 Angelman's syndrome and 15q11-13 deletions. JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 538 OP 538 DO 10.1136/jmg.26.8.538 VO 26 IS 8 A1 J P Fryns A1 A Kleczkowska A1 P Decock A1 H Van den Berghe YR 1989 UL http://jmg.bmj.com/content/26/8/538.1.abstract AB