(19)

(11)

EP 1 330 808 A1

(12)

(43) Date of publication: 30.07.2003 Bulletin 2003/31 (21) Application number: 01962463.4 (22) Date of filing: 22.08.2001

(51) International Patent Classification (IPC)7: G09B 23/28 (86) International application number: PCT/AU0101/038 (87) International publication number: WO 0201/7277 (28.02.2002 Gazette 2002/09)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 23.08.2000 AU PQ962700 16.03.2001 AU PQ378201 (71) Applicant: The Royal Alexandra Hospital for Children Westmead, NSW 2145 (AU)	(72) Inventor: SHUN, Albert Westmead, NSW 2145 (AU) (74) Representative: Nettleton, John Victor et al Abel & Imray20 Red Lion Street London WC1R 4PQ London WC1R 4PQ (GB)