title: Friedreich's ataxia: preliminary results of some genealogical research.
abstract: A preliminary genealogical investigation of all the known ancestors from the year 1608 of 4 apparently unrelated French Canadian kindreds with Friedreich's ataxia reveals that the original ataxia gene in the province of Quebec was present within a core of no more than 10 families living in Quebec City in the mid-1600's.
mesh_terms: D003241:Consanguinity; D005260:Female; D005621:Friedreich Ataxia / Q000235:genetics*; D006801:Humans; D008297:Male; D010375:Pedigree; D011792:Quebec