For Quality Control (QC) estimates we determined call rates for each SNP in all samples. Included in the Dublin and Munich samples were duplicated DNA samples. Within the UK, Bulgarian and Dublin sample, we included samples from the HapMap CEU population to determine genotyping congruence against the HapMap data. In the sample genotyped by the Dublin group for marker rs17584522, there were both duplicate samples and HapMap samples with which to check genotyping QC.
