RT Journal Article SR Electronic T1 Angelman's syndrome. JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 889 OP 890 DO 10.1136/adc.67.7.889 VO 67 IS 7 A1 J Clayton-Smith YR 1992 UL http://adc.bmj.com/content/67/7/889.abstract AB