PT - JOURNAL ARTICLE ED - , TI - Presymptomatic testing for Huntington's disease: a world wide survey. The World Federation of Neurology Research Group on Huntington's Disease. AID - 10.1136/jmg.30.12.1020 DP - 1993 Dec 01 TA - Journal of Medical Genetics PG - 1020--1022 VI - 30 IP - 12 4099 - http://jmg.bmj.com/content/30/12/1020.short 4100 - http://jmg.bmj.com/content/30/12/1020.full SO - J Med Genet1993 Dec 01; 30 AB - World wide data on presymptomatic testing for Huntington's disease using closely linked DNA markers show that 1479 persons at risk received completed test results up to the end of 1991. Testing has been carried out in 19 countries, with at least 88 centres involved, and numbers have levelled off after a peak in 1990. Only 5% of those at risk have been tested in six countries with the longest established programmes. Continued monitoring of international data will be of value in assessing the spread and impact of genetic testing, not only for Huntington's disease, but for other serious genetic disorders of later life.