RT Journal Article SR Electronic T1 Pure trisomy 20p resulting from isochromosome formation and whole arm translocation JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 454 OP 458 DO 10.1136/jmg.37.6.454 VO 37 IS 6 A1 R U SIDWELL A1 M-P PINSON A1 B GIBBONS A1 S-A BYATT A1 E C SVENNEVIK A1 R J HASTINGS A1 D M FLYNN YR 2000 UL http://jmg.bmj.com/content/37/6/454.abstract AB