RT Journal Article SR Electronic T1 General cytogenetics JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP S18 OP S22 DO 10.1136/jmg.33.Suppl_1.S18 VO 33 IS Suppl 1 YR 1996 UL http://jmg.bmj.com/content/33/Suppl_1/S18.abstract AB