The study checked for non-random associations between mtDNA haplotypes and nuclear polymorphisms in long-lived individuals_x000D_. There wasn't cases vs control, but stratification to 3 age groups.mtDNA haplogroup and TH genptype were assigned following procedures described in De Benedictis et al., 1999 and in De Benedictis et al., 1998, respectively.
Ethnicity: Italian
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