RT Journal Article SR Electronic T1 Tetrasomy 12p (Pallister-Killian syndrome). JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 122 OP 125 DO 10.1136/jmg.28.2.122 VO 28 IS 2 A1 Schinzel, A YR 1991 UL http://jmg.bmj.com/content/28/2/122.abstract AB