Figure 1From: No association between polymorphisms in the BDNF gene and age at onset in Huntington diseaseRelationship between BDNF Val66Met (rs6265) genotypes and age at onset (AO) for 250 Huntington disease patients. For each genotype, the median AO is represented as a black bar, the quartile is shown as a solid box, and the range is indicated by the margins.Back to article page