Prader-Willi and Angelman Syndromes
Medicine 77:140-151, Cassidy,S.B.&Schwartz,S., 1998
Diagnostic Test for the Prader-Willi Syndrome by SNRPN Expression in Blood
Lancet 348:1068-1069, Wevrick,R.&Francke,U., 1996
Leigh's Disease in an Adult with Evidence of"Inhibitor Factor"in Family Members
Ann Neurol 3:519, Whetsell,W.O.,et al, 1978