RT Journal Article SR Electronic T1 Supernumerary marker chromosome (1) of paternal origin and maternal uniparental disomy 1 in a developmentally delayed child JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 885 OP 888 DO 10.1136/jmg.38.12.885 VO 38 IS 12 A1 Benno Röthlisberger A1 Tatjana E Zerova A1 Dieter Kotzot A1 Tamara I Buzhievskaya A1 Damina Balmer A1 Albert Schinzel YR 2001 UL http://jmg.bmj.com/content/38/12/885.abstract AB