RT Journal Article SR Electronic T1 Trinucleotide repeat contraction: a pitfall in prenatal diagnosis of myotonic dystrophy JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 850 OP 852 DO 10.1136/jmg.38.12.850 VO 38 IS 12 A1 Jeanne Amiel A1 Valérie Raclin A1 Jean-Marie Jouannic A1 Nicole Morichon A1 Hélène Hoffman-Radvanyi A1 Marc Dommergues A1 Josué Feingold A1 Arnold Munnich A1 Jean-Paul Bonnefont YR 2001 UL http://jmg.bmj.com/content/38/12/850.abstract AB