RT Journal Article SR Electronic T1 Chromosome 15 maternal uniparental disomy and psychosis in Prader-Willi syndrome JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 72 OP 73 DO 10.1136/jmg.40.1.72 VO 40 IS 1 A1 Vogels, A A1 Matthijs, G A1 Legius, E A1 Devriendt, K A1 Fryns, J-P YR 2003 UL http://jmg.bmj.com/content/40/1/72.abstract AB