Clinical and Genetic Abnormalities in Patients with Friedreich's Ataxia
NEJM 335:1169-1175, 12221996., Durr,A.,et al, 1996
Prader-Willi and Angelman Syndromes
Medicine 77:140-151, Cassidy,S.B.&Schwartz,S., 1998
Physical Features of Prader-Willi Syndrome in Neonates
Am J Dis Child 144:1251-1254, Aughton,D.J.&Cassidy,S.B., 1990