title: An unusual cause for bleeding in Ireland: factor XI deficiency.
mesh_terms: D000328:Adult; D000368:Aged; D005173:Factor XI Deficiency / Q000150:complications / Q000453:epidemiology*; D005260:Female; D006470:Hemorrhage / Q000453:epidemiology / Q000209:etiology*; D006801:Humans; D007494:Ireland; D008297:Male