RT Journal Article SR Electronic T1 Chromatin modification and disease JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 905 OP 915 DO 10.1136/jmg.37.12.905 VO 37 IS 12 A1 Johnson, Colin A YR 2000 UL http://jmg.bmj.com/content/37/12/905.abstract AB